COLLEGE PHYSICS
2nd Edition
ISBN: 9781464196393
Author: Freedman
Publisher: MAC HIGHER
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Chapter 5, Problem 33QAP
To determine
The size of the coefficient of kinetic friction between a hockey puck and the ice of a rink
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Estimate the height of a typical playground slide and theangle its surface makes with the horizontal. A child wearing a different sort of clothing than the first child climbs the ladder to the top of the slide, sits on the slide, lets go of the handrail, and remains at rest. What is the minimum possible value for the coefficient of static friction between this child and the surface of the slide?
Which of the following statements is true about friction?
k and us are independent on the mass of the object.
The coefficients of friction are independent on the nature of the surfaces.
Hk is greater than us
Static friction is relatively constant while kinetic friction is not.
The force of static friction depends on the area of contact between the two surfaces.
As a girl pushes an object across a wood floor, she suddenly comes to an
area where the floor has been waxed recently, making it slippery. What
becomes true of the coefficient of kinetic friction?
A. The coefficient of kinetic friction increases.
B. The coefficient of kinetic friction decreases.
C. The coefficient of kinetic friction becomes zero.
D. The coefficient of kinetic friction becomes negative.
Chapter 5 Solutions
COLLEGE PHYSICS
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