Physics
7th Edition
ISBN: 9780321625915
Author: Douglas C. Giancoli
Publisher: PEARSON
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Chapter 4, Problem 3MCQ
Matt, in the foreground of Fig. 4-39, is able to move the large truck because
a. he is stronger than the truck.
b. he is heavier in some respects than the truck.
c. he exerts a greater force on the truck than the truck exerts back on him.
d. the ground exerts a greater friction force on Matt than it does on the truck.
e. the truck offers no resistance because its brakes are off
Figure 4-39
MisConceptual Question 3
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TICE D
Conservation of Momentum
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0 = L/R 2T
3r 4
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0 t = L/R 2t
(c)
Эт 4t
19.89
]
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2.09
S
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28.5
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Imagine a planet where gravity mysteriously acts tangent to the equator and in the eastward directioninstead of radially inward. Would this force do work on an object moving on the earth? What is the sign ofthe work, and does it depend on the path taken? Explain by using the work integral and provide a sketch ofthe force and displacement vectors. Provide quantitative examples.
Chapter 4 Solutions
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