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How much force is required to accelerate a car with a mass of 2000 kg to 3 m/s2

Answer: 6,000 N is the force is required to accelerate a car with a mass of 2000 kg to 3 m/s² Force and mass is directly proportional Force and acceleration is also directly proportiona How much force is required to accelerate a car with a mass 2000 kg to 3m/s^2? a. 6000 kg.m/s b. 600 n c. 6000 n d. 667 What net force is needed to accelerate a 2000-kg car 2.00 m/s/s? Physics. 2 Answers Daniel L. Jun 5, 2017 It is #vec(F)=4,000N#. See explanation. Explanation: According to Newton's Second Law of Dynamics the force is equal to: #vec(F)=m*vec(a)# Here it is: #F=2000*2=4,000# #[N]# Answer link.

How much force is required to accelerate a car with a mass

What net force is needed to accelerate a 2000-kg car 2

  1. When you're using the force, mass, and acceleration formula in the imperial system (i.e. when you're using units of pounds force, pounds mass, and feet per second squared) there's a unit of mass that you need to be aware of, called the slug. A slug is the amount of mass that will accelerate at 1 ft/s 2 when one pound force (lbf) is exerted on.
  2. Force, in mechanics, any action that tends to maintain or alter the motion of a body or to distort it. The concept of force is commonly explained in terms of Isaac Newton's three laws of motion set forth in his According to Newton's first principl..
  3. Estimate the force needed to accelerate a family car to its top speed on a single carriageway. Using values of ~1,600 kg and ~3 m/s2, and F = m a: 1,600 × 3 = ~4,800
  4. What force is needed to accelerate a truck with mass 3,000 kg at a rate of 2.0 m/s2? A. 12,000 N B. 3000 N C. 1500 N D. 6000

How much force does it take a 35 kg dog to produce this acceleration? 7. A 2,000 kg car accelerated at the rate of 2.6 m/s2. How much force is required to achieve this acceleration? 8. How much force is required to accelerate a 1,000 kg car at a rate of 3 m/s2? 9. If a 70 kg swimmer pushes off a pool wall with a force of 250N, at what rate will. How much force is needed to accelerate a 1000-kg car at a rate of 3 m/s 2? GIVEN WORK 1000-kg and 3 m/s^2 (1000 kg) (3 m/s^2) = ANSWER: 3000 N 2. If a 70-kg swimmer pushes off a pool wall with a force of 250 N, what is her acceleration? GIVEN WORK 70 kg 250 N 250 N / 70 kg ANSWER: 3.57 M / S 3

Force Calculator F = m

  1. How much force is needed to accelerate a 1000-kg car at a rate of 3 m/s 2? GIVEN WORK m=1000kg a=3m/s^2 F=ma F=1000x3 F=3000N ANSWER: 3000N 2. If a 70-kg swimmer pushes off a pool wall with a force of 250 N, what is her acceleration? GIVEN WORK m=70kg F=250N F=ma 250=70a a=3.57m/s^2 ANSWER: 3.57m/s^2 3. Find the mass of a football player who.
  2. How much force is needed to accelerate a 1000-kg car at a rate of 3 m/s2 - Answered by a verified Tutor We use cookies to give you the best possible experience on our website. By continuing to use this site you consent to the use of cookies on your device as described in our cookie policy unless you have disabled them
  3. Question: If Your Car Has A Mass Of 713 Kg, How Much Force Is Required To Accelerate It Forward At 3.29 M/s ? F=? If A Sprinter's Mass Is 50.0 Kg, How Much Forward Force Must Be Exerted On The Sprinter To Make The Sprinter Accelerate At 0.780 M/sz? FE? If Your Car Accelerates From Rest At A Steady Rate Of 4 M/s2, How Soon Will It Reach 82.8 Km.
  4. How much net force is required to accelerangan equired to accelerate a 1000 kg car at 4.00 m A body of mass 1 kg undergoes a change of Velocity of 4m/s in 4s. If you apply a net force of 3 Non.1 kg-box, What is the acceleratior If a net force of 7 N was constantly applied on 400 g object at rest, Felocity to 80 m/s
  5. 5. How much force is needed to accelerate an 8.5 gram bullet at 18,500 m/s2? 6. A force of 4600 N accelerates a 1650 kilogram car. What is the acceleration of the car? 7. A track and field shot-putter exerts a force of 140 N to accelerate the shot 19 m/s2. What is the mass of the shot? 8. How much force is acting on a 1 kg apple in free-fall? 9.
  6. A 10 kg object is accelerated upward at 2 m/s2. What force is required? Calculating Force DRAFT. 5th - 9th grade. 245 times. How much force is needed to accelerate a 25kg bowling ball at 2m/s 2? answer choices . 50N. 5N. 12.5N. Which would hit a wall with a greater force, a car (small mass) or bus (large mass) if they both travel at the.
  7. It takes a force of 3000 N to accelerate an empty 1000 kg car at 3 m/s2. If a 160 kg wrestler is inside the car, how much force will be needed to produce the same acceleration ? F = m = a = ? 1160 kg 3 m/s2 F = m a F = 1160 kg * 3 m/s2 F = 3480

A block of mass 3 kg slides along a horizontal surface while a 20-N force is applied to it at an angle of 25°. If needed, use g = 10 m/s2. For a coefficient of kinetic friction of 0.3 between the block and the surface, the . Physics. Acar of mass 800kg goes round a corner of radius 65m at a speed of 10m/s What force is required to accelerate a 1,000 kg car 5 m/s2? Physics. how much work is required to make a 1400 kg car increase its speed from 10 m/s to 20 m/s? what average force is required if the car travels 15 m during this speed change? physics. If your car has a mass of 770 kg, how much force is required to accelerate it forward at 4.98 m/s2

Chapter 6 Flashcards Quizle

  1. The more mass the more inertia. 7. How much force is required to accelerate a 795 kg Lorinser Speedy by 15 m/s 2? See Answer A 795 kg car starts from rest and travels 41 m in 3.0 s. How much force did the car engine provide? See Answer F = 7242 N. 15. Joe and his sailboat have a combined weight of 450 kg..
  2. That means, F = ma, where F is the force in Newtons, m is the mass of the body in kg, and a is the acceleration.So, we are given F and m, we need to find a.Putting the values,10,000 = 2000 * aa.
  3. F = M A = (2,000) (4) = 8,000 newtons That's about 1,800 pounds of force, or 0.9 ton, which is an awful lot of force. But your 2000-kg car weighs about 2.2 tons, and you've got it doing zero to 6
  4. A: Mass. B: Meters. C: Force. D: Acceleration-----9. Q: How much net force is required to accelerate a 2000 kg car at 3.00 m/s2? A: 2000 N. B: 4000 N. C: 6000 N. D: 8000 N-----10. Q: If you apply a net force of 3 N on 100 g-box, what is the acceleration of the box? A: 5 m/s2. B: 10 m/s2. C: 20 m/s2. D: 30 m/s2-----11

9. What force is required to accelerate an automobile with a mass of 1500 kg at 3 m/s2? [4500 N] 10. A horizontal force applied to a 24 kg mass will give it an acceleration of 5.8 m/s2. Find the magnitude of the force. [139.2 N] 11. What force is required to accelerate a 2000 kg car from 5 m/s to 25 m/s, in a time of 5 s? [8000 N] 12 Using the mass M of the automobile in question in kilograms (1 Kg = 2.2 pounds) and the acceleration a desired in meters per second squared, insert the parameters into Newton's second law equation to get the force F required in kilogram meters per second squared, which is equivalent to the basic unit of force, the Newton Compare the work required to accelerate a car of mass 2000 kg from 30.0 to 40.0 km/h with that required for an acceleration from 50.0 to 60.0 km/h. Suppose you are jogging at constant velocity. Are you doing any work on the environment and vice versa? Two forces act to double the speed of a particle, initially moving with kinetic energy of 1 J

What force would be required to accelerate a 1,100 kg car

Calculate the force required for an 8 pound wagon to accelerate at 7 m/s 2. First, convert all your units to SI. One pound is equal to .453 kg, so you'll need to multiply that value by your 8 pounds to determine the mass. Multiply your new value for the mass (3.62 kg) by your acceleration value (7 m/s 2) Sally has a car that accelerates at 4.8 m/s2. If the car has a mass of 2130 kg, how much force is required to accelerate the car at this rate? 4. What is the mass of a falling rock if it produces a force of 147 N? 5. What is the mass of a truck if it produces a force of 14,000 N while accelerating at a rate of 5.0 m/s2

What force is required to accelerate a car with a mass of

If it can support a mass of 58 kg, the breaking force is the weight of 58 kg or (58 kg)(9.80 N/kg) = 568.4 N. This would be the maximum upward force the sheets could supply. Mr. thief could accelerate downward at a constant rate, thereby reducing the tension in the sheets to this value Solution for How much forces is needed to accelerate a 1400 kg car 2 m/s2 ? O 2700 N O 2800 N O 2600 How much force is needed to accelerate a truck with a mass of 2,000 kg, at a rate of 4 m/s²? 15. What force is needed to accelerate a 1,000 kg car at a rate of 25 m/s/s? 16. A boy pushes on a box of mass 10 kg and it moves at an acceleration of 2m/s2. With what force does the bo Solution for 4 How much force is needed to accelerate a toy car of mass 8 kg at 2m/s?? 2. A trolley of mass 20 kg was originally at rest on a smooth horizonta 5. What force is needed to accelerate a 1,000-kg car from a stop to 5 m/s 2 ? 6. What is the acceleration of a truck with a mass of 2,000 kg when its brakes apply a force of 10,000 N? 7. A 20-N force accelerates a baseball at 140 m/s 2 (briefly!). What is the mass of the baseball? 8. Gina is pushing a 10-kg box with 50 N of force toward the east

A flywheel, mass 3 kg, outside radius 300 mm, radius of gyration 212 mm. suspended mass 0.5 kg. The mass is released and falls 0.5 m in 1.5 seconds. calculate: a). tension in the rope. b). frictional read mor (a) Calculate the force needed to bring a 950-kg car to rest from a speed of 90.0 km/h in a distance of 120 m (a fairly typical distance for a non-panic stop). (b) Suppose instead the car hits a concrete abutment at full speed and is brought to a stop in 2.00 m. Calculate the force exerted on the car and compare it with the force found in part (a) An object of mass 300 kg is observed to accelerate at the rate of 4 m/s2.Calculate the force required to produce this acceleration. 22. 23. A hockey player has a mass of 125 kg Name Chapter 3 ndNewton's 2 Law, Acceleration Practice Worksheet Force acceleration = ----- mass a = F / m Units of Force are Newtons. N = kg·m/s2 1. What is the rate of acceleration of a 2,000 kg truck if a force of 4,200 N is used to make i Answer: 3 question What force would be required to accelerate a 1.100 kg car to 0.5 m/s2 N - the answers to estudyassistant.co

force, mass, acceleration and speed problems Quiz - Quiziz

What net force is required to accelerate a car at a rate of 2 m/s2 if the car has a mass of 3,000 m=10 kg. a= 3 m/s2. 3. Sally has a car that accelerates at 5 m/s2. If the car has a mass of 1000 kg, how much force does the car produce? F= 5000 Newtons Your own car has a mass of 2000 kg. If your car produces a force of 5000 N, how fast. 1. That net force is required to accelerate a car at a rate of 2 m/s2 if the car has a mass of 3,000 kg? 2. AIO kg bowling ball would require what force to accelerate down an alleyway at a rate of 3 m/s2? 3. Sally has a car that accelerates at 5 m/s2. If the car has a mass of 1000 kg, how much force does the car produce? 4 A particle of mass m moves along a circle of radius R with a normal acceleration varying with time as where b is a constant. Find the time dependence of the power developed by all the forces acting on the particle and the mean value of this power averaged over the first t seconds after the beginning of motion How to solve: How large a force is required to accelerate a 1600 kg car from rest to a speed of 25 m/s in a distance of 200 m? By signing up,.. speed along a straight line. The mass of an object is a quantitative measure of inertia. SI Unit of Inertia and Mass: kilogram (kg) IN G O D WE TR U S T LIBERTY 1996 Penny (0.003 kg) Book (2 kg) Bicycle (15 kg) Car (2000 kg) Jetliner (1.2 x 105 kg) Supertanker (1.5 x 108 kg) 45807_04_p1-48 6/17/05 3:31 PM Page

7. What force is needed to accelerate a 1,000-kg car from a stop to 5 m/s 2 ? 8. What is the acceleration of a truck with a mass of 2,000 kg when its brakes apply a force of 10,000 N? 9. A 20 N force accelerates a baseball at 140 m/s 2 (briefly). What is the mass of the baseball? 10 1. A 2300 Kg car accelerates from rest to 6.00 m/s in 12.0 seconds. What is the net force acting on the car? 2. What is the net force required to accelerate a 4.5 Kg watermelon at 18 m/s2? 3. If an unbalanced force of 1350 N acts on a 900 kg car, what will be the change in the velocity of the car after 5.00 seconds? 4

Forces and NEWtoNS LAwS - Practice Problems Flashcards

1 N = 1 kg-m/sec2 Problems. 1. Two cars accelerate at 2 m/sec2. Car A has a mass of 750 kg, while Car B has a mass of 1000 kg. What forces are required to accelerate each car? If you are concerned with the price of gas, which car would you rather drive and why? less 2. A 500 kg rocket can accelerate from rest to a speed of 600 m/sec in 2. C) 2,000 newtons D) 2,300 newtons E) 4,000 newtons 18.A 2,000 newton car is parked on a 30 degree incline. If the driver does not use the emergency brake, how much force must the transmission exert on the car? A) 25 newtons B) 30 newtons C) 40 newtons D) 50 newtons E) 60 newton

Force Calculator Calculate Mass, Acceleratio

How much force is required to accelerate a 2 kg mass at 3

Physics First force required to accelerate a 1500 kg car

  1. If your car has a mass of 800 kg, how much force is re-quired to accelerate it forward at 4 m/s2? 2. If your car accelerates from rest at a steady rate of 4 m/s2, how soon will it reach 88.5 km/h (55.0 mph or 24.6 m/s)? 3. On Mars, the acceleration due to gravity is 3.71 m/s2. What would a rock's velocity be 3 s after you dropped it on Mars? 4
  2. (3. What is the acceleration of a 50 kg object pushed with a force of 500 newtons? F= ma 500 = 50(a) a= 10 m/s2 (4. The mass of a large car is 1000 kg. How much force would be required to accelerate the car at a rate of 3 m/sec2? F= ma f= 1000 x 3 f= 3000 N (5. A 50 kg skater pushed by a friend accelerates 5 m/sec2
  3. How much force is required to accelerate a 12 kg mass at m 5 m/s. Answers: 3 Get Other questions on the subject: Physics. Physics, 21.06.2019 17:00, 001136843.
  4. How much force is needed to accelerate a 2000-kg car at 5 meters per second per second? A. 400 N B. 500 N C. 1000 N D. 10000 N - 136975
  5. Force: N kN mN uN nN pN Newton's Second Law of Motion states that the acceleration of an object as produced by a net force is directly proportional to the magnitude of the net force, in the same direction as the net force, and inversely proportional to the mass of the object
  6. How much horizontal net force is required to accelerate a 1000 kg car at 2 m/s2? 2000 Newtons; Newton's 2nd Law relates an object's mass, the net force on it, and its acceleration: What acceleration will result when a 12-N net force applied to a 3-kg object? A 6-kg object? x: A net force of 16 N causes a mass to accelerate at a rate of 5 m/s2.
  7. a = 12.5 m/s2. Just as easy as the first example! The acceleration of the fighter jet is 12.5 m/s2. Conclusion. Mass is the total amount of matter in an object, measured in kilograms (kg). Force is the push or pull on an object, measured in newton (N). Acceleration is the rate of change in velocity experienced by an object, measured in meter.

The required force applied = 4000 Newtons The given mass is 1000 kg. And, the given acceleration is 4 m/s². The required force applied = ? The required force applied is 4000 Newtons Acceleration and velocity. Newton's second law says that when a constant force acts on a massive body, it causes it to accelerate, i.e., to change its velocity, at a constant rate 7. What net force is required to accelerate a car at a rate of 2 m/s2 if the car has a mass of 3,000 kg? F=_____ m=_____ a= _____ 8. A10 kg bowling ball would require what force to accelerate down an alleyway at a rate of 3 m/s2? F=_____ m=_____ a=_____ 9. Sally has a car that accelerates at 5 m/s2 The car has a mass of 1,500 kg. Neglecting friction, how fast will the car accelerate? What net force is required to accelerate a 1,000 kg car at 20 m/s2? 0.02 N. 50 N. 980 N. 20,000 N. 40,000 N What net force is required to accelerate a 1,000 kg car at 5 m/s2? If you apply a 200 N net force to an object and it accelerates at 4 m/s2, what is. kg to Newtons Calculator | Mass to Newtons Converter. Newton is the international unit of measure of force and its named after Sir Isaac Newton. A Newton is equal to 1-kilogram meter per second squared. In general, Mass is a measure of the amount of matter in a particle or object. Mass of the object is determined by measuring the weight of an.

Force Mass Acceleration Calculator calculatordonke

Using the impact force calculator. This versatile impact force calculator is useful for estimating the impact forces involved in collisions of different kinds. For example, it can be used to calculate the impact force of a vehicle (car, truck, train), plane, football, of birds hitting a plane or wind mill, as well as for falling bodies that crash into the ground 53. A 921-kg sports car is moving rightward with a speed of 29.0 m/s. The driver suddenly slams on the brakes and the car skids to a stop over the course of 3.20 seconds with the wheels locked. Determine the average resistive force acting upon the car. PSYW. Answer: 8350 N. There are three (perhaps four) forces acting upon this car The acceleration of an object equals the net force acting on it divided by its mass.

How much force is required to accelerate an 8 kg mass at

1. What net force is required to accelerate a car at a rate of 2 m/s2 if the car has a mass of 3,000 kg? Formula Substitution Final Answer with Units 2. A 10 kg bowling ball would require Wiat force to accelerate down an alleyway at a rate of 3 rws2? Formula Substitution Final Answer with Units 3. Sally has a car that accelerates at 5 mis2 The force needed to accelerate is F=MA; a moderate acceleration rate is about 0.1g, which means that you'll need 16 lbs of force to achieve that. As you can see, the force needed to accelerate is the number you really need to consider as it is much larger than that required for rolling resistance. May 10, 2011 #

What net force is required to accelerate a car at a rate of 2 m/s2 if Your own car has a mass of 2000 kg. If your car produces a force of 5000 N, how fast will it accelerate? 8. Sally wants to accelerate even faster than in problem #3, so she removes 500 kg of mass from her car. How fast will her 1500 kg car accelerate if it produces. Mass and weight are related by Newton's law, W=mg (Weight = Mass * Gravity). The value of gravity used for these conversions is 32.1740486 ft/s² or 9.80665 m/s². The units for force (weight) and mass are based on the equations below A train consists of a caboose (mass = 1000 kg), a car (mass 2000 kg), and an engine car (mass 2000 kg)

Newton's Second Law - Forces, acceleration and Newton's

Problem 5: One truck having a mass of 975 kg is initially at rest. In 20 seconds, a truck attains the velocity of 40 m/s. Calculate the amount of net force acting on a truck. Solution: Given data: Mass of a truck, m = 975 kg. Time, t = 20 seconds. Final velocity of a truck, v = 40 m/s. Net force acting on a truck, F net = If Sam weighs 50 kilograms, then the force required is the product of his mass and his acceleration—about 16,000 newtons or about 1.6 tonnes weight. Since the impact force on Sam depends on the impact speed divided by the impact time, it increases as the square of the impact speed 10. How much force is needed to accelerate a 10-kg physics book to an acceleration of 2.0 m/s 2? 11. You pull horizontally on a 50-kg crate with a force of 400 N and the friction force on the crate is 100 N. The acceleration of the crate is? 12. A car has a mass of 2000 kg and accelerates at 3.0 meters per second squared. What i mass force mass acceleration force = mass x acceleration How much force is needed to accelerate a truck with a mass of 2,000 kilograms at a rate of 3 m/sec ? F = m x a = 2,000 kg x 3 m/s2 = 6,000 kg-m/s2 = 6,000 N What is the mass of an object that requires 15 N to accelerate it at a rate of 1.5 m/s2? F _ 15N 1.5 m/s 15 kg-m/s2 — 10 kg 1.5 m. The SI unit of force is the newton (symbol N), which is the force required to accelerate a one kilogram mass at a rate of one meter per second squared, or kg·m·s −2. The corresponding CGS unit is the dyne, the force required to accelerate a one gram mass by one centimeter per second squared, or g·cm·s −2. A newton is thus equal to.

What force is needed to accelerate a truck with mass 3,000

A roller coaster of mass 500 kg starts its ride from rest at point A. Point A is located at a height of 70 m above the lowest point on the track. The car rolls down the incline and follows the track around a loop of radius 15 m. Ignore friction force. How much work is required to bring the car to point A? Calculate the speed of the car at point C A 15.0 kg box is released on a 34.0° incline and accelerates down the incline at 0.273 m/s2. Find the friction force impeding its motion. Take positive to be down the ramp. What coefficient of friction is necessary for a 2000 kg SUV to climb a 5 degree incline at a constant speed the action force is applied first and the reaction force appears later: A .25-kilogram ball is observed to accelerate at 4,000 m/s2 as it is hit with a bat. How much force is exerted on the bat by the ball? 1,000 Newtons: The weight of 1-kg mass is: 9.8 newtons: The force called weight comes from: gravity: A bunch ob bananas weights 1.5 lbs on. 49. How much kinetic energy does a 4 Kg cat have while running at 9 m/s? 50. What is the mass of an object moving with a speed of 4 m/s and a kinetic energy of 2000 J? 51. A 400 Kg car has 1.8 x 105 J of kinetic energy. How fast is it moving? 52. How fast is a 3 Kg toy car with 20 J of kinetic energy moving? 53

Force, Mass, and Acceleration? Yahoo Answer

What average net force is required to accelerate a 9.5 g bullet from rest to 650 m/s over a distance of 0.85 m along the barrel of a rifle? Homework. A physics student pushed a 50 kg load across the floor, accelerating it at a rate of 1.5 m/s2. How much force did she apply? A 10,000 N net force is accelerating a car at a rate of 5.5 m/s2. What. 1. How much work is required to lift a 10-kilogram mass to a height of 46 meters? 2. What force is required to do 120 joules of work in sliding an object a distance of 8 meters across a level floor? 3. How much work will a 680-watt motor do in 5 seconds? 4

completed force and accel 2 ws

Example 6: A rock of mass 6.1kg is raised to the top of a building 13m high. Calculate its gravitational P.E. with respect to the ground level.. Solution: P.E. = Mgh ; P.E. = (6.1kg)(9.8m/s 2)(13m) = 780 Nm = 780J. Example 7: In the figure shown, a 95-kg crate is pushed up an incline that is practically frictionless. The incline is 8.0m long and makes a 31 o angle with the horizontal floor m kg mass will apply mg newton force on its supports. how ever m kg mass will apply m kg force on its supports. because 1 kg force = 9.81 newtons = g newtons. So 1000 kg wt car will have 1000 kg mass or 2200 lbs. Calculate ma and your answer has to match. Metric / SI is much simpler 25. 2What net force is needed to accelerate a 1.25 kg book 5.00 m/s ? 26. 2What net force does the road exert on a 70.0 kg bicycle and rider to give them an acceleration of 2.0 m/s? 27. A 1,500 kg car accelerates uniformly from 44.0 km/h to 80.0 km/h in 10.0 s. What was the net force exerted on the car? 28 Per 1­2 Dynamics_Chapter_Problems.notebook 1 December 04, 2013 1 A 0.40 kg toy car moves at constant acceleration of 2.3 m/s2.. Determine the net applied force that i A 1000-kg car travels along a straight 500-m portion of highway (from A to B) at a constant speed of 10 m/s. At B, the car encounters an unbanked curve of radius 50 m. The car follows the road from B to C traveling at a constant speed of 10 m/s while the direction of the car changes from east to south. 23

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Units: In SI units, mass is measured in kg, acceleration in m/s 2 and force in Newton (N). 1 N = 1 kg m/s 2. (Conversion: 1 pound-force = 4.448 N) Given the same push or pull, larger masses accelerate less than smaller masses. You need much less force to accelerate a tricycle than to accelerate a car. Because of its inertia, you need a force to. The box weighs 100 kg. The friction force is enough to keep it where it is. The reaction force R is at right angles to the ramp. The box is not accelerating, so the forces are in balance: The 100 kg mass creates a downward force due to Gravity: W = 100 kg × 9.81 m/s 2 = 981 N . We can use SOHCAHTOA to solve the triangle. Friction f: sin(20.

Enter 4,000 in the mass box and choose pounds from its menu. Enter 500,000 in the energy box and choose foot pounds from its menu. Click the CALCULATE button and this equals 61.149 miles per hour. AND you get to see the answer in 7 other different units !! 3) A woman with a mass of 95 pounds is running at 10 miles per hour A net force of 5,000.0 N accelerates a car from rest to 90.0 km/h in 5.0 s. (a) What is the mass of the car? (b) What is the weight of the car? What is the weight of a 70.0 kg person? How much centripetal force is needed to keep a 0.20 kg ball on a 1.50 m string moving in a circular path with a speed of 3.0 m/s 10. What is the rate of acceleration of a 2,000-kilogram truck if a force of 4,200 Nis used to make it start moving forward? 11. What is the acceleration of a 0.30 kilogram ball that is hit with a force of 25 N? 12. How much force is needed to accelerate a 68 kilogram-skier at a rate of 1.2 m/sec 2? 13 A car engine applies a force of 65 kN, how much work is done by the engine as it pushed a car a distance of 75 m? A force does 30000 J of work along a distance of 9.5 m. Find the applied force. How high can a 40 N force move a load, when 395 J of work is done? How much work is required to lift a 500 kg block12 m? Class Wor 10. What is the rate of acceleration of a 2,000-kilogram truck if a force of 4,200 N is used to make it start moving forward? 11. What is the acceleration of a 0.30 kilogram ball that is hit with a force of 25 N? 12. How much force is needed to accelerate a 68 kilogram-skier at a rate of 1.2 m/sec2 ? 13

To get the real torque required, you have to specify how fast you want to be able to accellerate this mass upwards. For example, let's say you need at least 3 m/s². Solving Newton's law of F = ma: (0.450 kg)(3 m/s²) = 1.35 N. That, in addition to the 4.4 N just to balance gravity means you need 5.8 N upwards force The force required to accelerate 1 slug 1 ft/s^2, where 1 slug is conveniently defined as 32.174048 lbm (i.e. the same value as the acceleration due to gravity) this approach also has the same added convenience as (1), your mass is equal to the force you exert on the surface of Earth (i.e., the magnitude of lbm and lbf are equal and. mass of the helicopter is 5.0 310 3 kg and the mass of the heat pump is 1500 kg. a. How much force must the air exert on the helicopter to lift the heat pump with an acceleration of 1.5 m/s 2? F net 5 F lift 1 F overcome gravity 5 ma 1 mg 5 (6.5 310 3 kg)(1.5 m/s 2) 1 (6.5 310 3 kg )(9.80 m/s 2) 5 7.3 310 4 N upward b. Two chains connected to. In a physics lab, Kate and Rob use a hanging mass and pulley system to exert a 2.45 N rightward force on a .500-kg cart to accelerate it across a low-friction track. If the total resistance force to the motion of the cart is 0.72 N, then what is the cart's acceleration acceleration = resultant force (newtons, N) divided by mass (kilograms, kg). One model rocket has a mass of 50 grams and a rocket engine that produces a thrust of 5 N for 1 second. To find the weight, 50 g needs to be changed into kilograms by dividing by 1000. This gives a mass of 0.050 kg. Weight is mass (in kg) x 9.8, which gives 0.050 x 9.8. EXAMPLE 1: ESTIMATE Force to accelerate a fast car. Estimate the net force needed to accelerate (a) a 1000-kg car at g/2; (b) a 200-g apple at the same rate. APPROACH We use Newton's second law to find the net force needed for each object. This is an estimate (the 1/2 is not said to be precise) so we round off to one significant figure

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