COLLEGE PHYSICS,VOLUME 1
2nd Edition
ISBN: 9781319115104
Author: Freedman
Publisher: MAC HIGHER
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Question
Chapter 4, Problem 85QAP
To determine
Force exerted by belt on the driver.
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The 4-Mg bus A is traveling to the right at 30 m/s. Meanwhile a 1-Mg car B is traveling
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is μι-0.7.
VA = 30 m/s
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B
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Study the scenario.
A car is moving along a frictionless surface with a speed of 2
m/s to the left. You and your friend each come over and push
the car at the same time. You exert a force of 6 N to the left,
while your friend exerts a force of 6 N to the right.
According to Newton's first law, how will this action affect the
car's motion?
The car will speed up because your force is in the
same direction of the car's motion, making it speed
up.
The car will stop immediately because two balanced
forces will cause an object to stop moving.
The car will continue moving to the left but at a
slower speed because your friend's force is going to
make the car slow down.
The car will continue to move 2 m/s to the left
because there are balanced forces acting on it.
Chapter 4 Solutions
COLLEGE PHYSICS,VOLUME 1
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