COLLEGE PHYSICS
2nd Edition
ISBN: 9781464196393
Author: Freedman
Publisher: MAC HIGHER
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Chapter 4, Problem 67QAP
To determine
The force between the ninth and tenth car.
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1) A bartender slides a mug of beer with mass 0.2 kg down a smooth, level bar. The mug leaves
the bartender's hand at an initial velocity of 2.8m/s. As the mug slides, it slows down due
to the effect of friction between the mug and bar. The mug just comes to rest in the
customer’s hand 1.0 m away from the bartender. Calculate the magnitude and direction of
the frictional force acting on the mug
5) A 640-N hunter gets a rope around a 3200-N polar bear. They are initially stationary, 20 meters apart, on frictionless level ice. The hunter now pulls on the rope such that she and the polar bear slide closer together. This continues until they eventually meet at some point on the ice. What total distance will the polar bear have slid?
a) 1.0 m
b) 3.3 m
c) 10 m
d) 12 m
e) 17 m
69. A locomotive pulls 10 identical freight cars. The
force between the locomotive and the first car is
100,000 N and the acceleration of the train is 2 m/s.
There is no friction to consider. Find the force between
the ninth and tenth cars. SSM
Chapter 4 Solutions
COLLEGE PHYSICS
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