Superman is applying a 17,000 N horizontal force to try and stop a speeding locomotive. This train has a mass of {9004} kg, it is on level, horizontal track, and gravity in Metropolis is 10 N/kg. The train is originally travelling at 25 m/s, and the brakes have failed. (Friction force is zero). Draw a Force Body Diagram of the train, labelling and calculating all forces. What is the acceleration of the train? How many seconds does it take for Superman to stop the train? How far does the train travel in that time?

Q: A physics student, in a stationary elevator, places a 250.0 g mass on an electronic balance. The…

A: Given  mass (m) =250.0 g balance reading (mb)=262.0 g Required acceleration of elevator (a)=?

Q: You are moving boxes into a new apartment. One of the boxes is very heavy, with a mass of 40kg, so…

A: Given data The mass of the box is m = 40 kg. The acceleration of the box is a = 3.2 m/s2. The force…

Q: Moments after making the dreaded decision to jump out the door of the airplane flying at 11,938…

A: Given data: The weight of the sky driver m=80.7 kg The force of air resistance Fa=119 N

Q: Superman throws a 2453 N boulder at an adversary. What horizontal force must Superman apply to the…

A: This is a problem of the application of Newtons laws of motion. According to Newton's third law of…

Q: An inventive child named Nick wants to reach an apple in a tree without climbing the tree. Sitting…

A:

Q: An Object with a mass of 6.2 kg accelerates 12.3 m/s2 when an unknown force is applied to it. What…

A: Given value--- mass = 6.2 kg. acceleration = 12.3 m/s2  . We have to find--- force ?

Q: The block has mass m = 6.8 kg, the ramp is at an angle of θ = 28 degrees, the coefficient of kinetic…

A: We have a mass of m=6.8 kg moving up a ramp at an angle 28o and the ramp has a coefficient of…

Q: In an experiment, a student exerts a force of 18.0 N on a 8.75 kg oak block to keep it moving at a…

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Q: A child is rolling a ball down a slide to his friend. The ball has a mass of 3 kg, and the slope of…

A:

Q: A force of 1.8 N is applied horizontally to a 683 g cereal box that is at rest on a horizontal…

A: As the box is not moving vertically that means the vertical forces are balanced that is : N = mg…

Q: Spongebob and Patrick are driving their car that has a mass of 1550 kg. They are driving at a…

A: Write the first kinematic equation and susbtitute the corresponding values to calculate the…

Q: Two forces are applied to a 4.0 kg cart on a rough surface as shown. At a certain instant, force A…

A:

Q: a test rocket is falling downward at a constant speed (however, it is acceleration in the horizontal…

A: The figure gives the free body diagram of all forces acting on the rocket.

Q: An elevator has a scale that measures the normal force between the contents and the floor. What…

A: Given:Mass,m= 960 kg Accelerating,a=1.5 m/s2Find  force will the scale.Now, Now,The elevator is…

Q: A scale in the elevator’s floor measures the weight of the passengers, and it has the correct value…

A: Given, a situation where an elevator moves up with a constant speed of v=3.2 m s-1.   Recall that,…

Q: You lift a 7.27-kg bucket of water from a well by pulling on a rope.  You give the bucket an…

A:

Q: An inventive child named Nick wants to reach an apple in a tree without climbing the tree. Sitting…

A:

Q: Bran is pushing Amira in a sled. The combined mass of the sled and Amira is 40.0 kg. There is a…

A:

Q: (a) (b)

A: from fig. (a) 2T = mg2 (92.4) =m (9.8)m = 184.89.8 =18.85 kg

Q: A robot pushes a 20-kg box on the horizontal surface as part of the moving job. The force is 35 N to…

A: The box can be moved only when the static frictional force between the box and the floor can be…

Q: A horizontal force of magnitude F = 57.5 N pushes on a block of mass m = 4.7 kg. The block is on a…

A: The given situation can be represented as

Q: A crate (20 kg) is hung in an elevator by a cord rated to withstand a tension of 500 N. The elevator…

A:

Q: A crate is dragged across an ice covered lake. The box accelerates at 0.08 m/s² and is pulled by a…

A: Given : Acceleration (a)=0.08m/s2 Applied force(F)=47N To find: mass of box (m)

Q: A car is towing a boat on a trailer. The driver starts from rest and accelerates to a velocity of…

A: To solve the problem we will calculate the acceleration first and then using Newton's 2nd law of…

Q: You hang a book bag on a spring scale and place the bag on a platform scale so that the platform…

A: Answer:   The magnitude of the force that exerts on the bag is given as:

Q: A 100 car train is pulled by a 200T locomotive. Assume that the cars are all identical and weigh…

A: As per our company guidelines we are supposed to answer only first 3 sub-parts. Kindly repost other…

Q: determine the man's upward acceleration. Use g = 9.80 Question 15. A person whose weight is 519 N is…

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Q: A student pushes a 10 kg box with a force of 30 N at an angle 45 degrees below the horizontal. The…

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Q: A person weighing 879. N rides in an elevator that has a downward acceleration of 1.37 m/s2. What is…

A:

Q: Two forces are applied to a 4.0 kg cart on a rough surface as shown. At a certain instant, force A…

A:

Q: The block has mass m = 10.6 kg, the ramp is at an angle of θ = 24 degrees, the coefficient of…

A:

Q: A 328-kg motorcycle is accelerating up along a ramp that is inclined 30.0° above the horizontal. The…

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Q: A falling ball of mass 0.5 kg experiences a downward force due to gravity of mg (where g = 9.8 m/s2)…

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Q: What is the Normal force and the acceleration of the object shown in the figure, where F1 = 25 N, F2…

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Q: Computation. A block of mass 67 kg is being pulled up a 43° slope by a force, F, directed parallel…

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Q: You have a person pulling to the left with force 115 N, and another person pulling to the right with…

A: Given data:  The two forces are acting on the box  F1 = -115 N F2 = +154 N Mass (m) = 2.3 kg…

Q: Two forces are applied to a 12 kg cart on a rough surface as shown. At a certain instant, force A is…

A:

Q: The symbol w is used for distributed loads. What are the units for w? force/length (for example…

A:

Newton's Second Law

Newton’s laws of motion describe the relationship between the motion of an object and forces acting on it. Newton’s law of motion has two types as follows: