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Exam 5: Newtons Third Law of Motion: Action and Reaction

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Question 1

Multiple Choice

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Use the following figure to answer the question: -Arnold Strongman and Suzie Small each pull very hard on opposite ends of a massless rope in a tug-of-war.The greater force on the rope is exerted by

A) Arnold,of course.
B) Suzie,surprisingly.
C) both the same,interestingly enough.

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Question 2

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As a ball falls,the action force is the pull of Earth on the ball.The reaction force is the

A) air resistance acting against the ball.
B) acceleration of the ball.
C) pull of the ball's mass on the Earth.
D) none of these

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Question 3

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A automobile and a baby carriage traveling at the same speed collide head-on.The impact force is

A person is attracted toward the center of Earth by a 500-N gravitational force.The Earth is attracted toward the person with a force of

The force exerted on the tires of a car to directly accelerate it along a road is exerted by the

Your friend says that the heavyweight champion of the world cannot exert a force of 50 N on a piece of tissue paper with his best punch.The tissue paper is held in midair - no wall,no tricks.You

A player catches a ball.Consider the action force to be the impact of the ball against the player's glove.The reaction to this force is the

The attraction of a person's body toward Earth is called weight.The reaction to this force is

Two people,one twice as massive as the other,attempt a tug-of-war with 12 meters of massless rope on frictionless ice.After a brief time,they meet.The heavier person slides a distance of

A vehicle that weighs 4000 N on the surface of the Earth is travelling in outer space at a speed of 200 m/s.The smallest constant force that must be applied to stop it in 20 seconds is

A player hits a ball with a bat.The action force is the impact of the bat against the ball.The reaction to this force is the

A baseball player bats a ball with a force of 1000 N.The reaction force that the ball exerts against the bat is

A piece of rope is pulled by two people in a tug-of-war.Each pulls with 400 N of force.What is the tension in the rope?

Earth pulls on the moon.Similarly the moon pulls on Earth,evidence that

An archer shoots an arrow.Consider the action force to be the bowstring against the arrow.The reaction to this force is the

A vehicle that weights 400 N on the surface of the Earth is traveling in outer space at a speed of 400 m/s .It can be stopped by applying a constant force of 20 N for

For an action force,there must be a reaction force that

A bird sitting on the limb of a tree is moving about 30 km/s with respect to the sun.If the bird takes 1 second to drop down to a worm below,the worm would be 30 km downrange from the bird when it reached the ground.This faulty reasoning is best countered with Newton's

A skydiver falls towards the Earth.The attraction of the Earth on the diver pulls the diver down.What is the reaction to this force?

A Mack truck and a Volkswagen traveling at the same speed have a head-on collision.The vehicle that undergoes the greatest change in velocity will be the