KEY CONCEPT FIGURE 4.12 Kinetic and static friction are parallel to the surface. The sled is moving to the right but it is slowing down . . . The woman is pulling to the left, but the crate doesn't move ... ... because a static friction force directed to the right opposes this motion. ... because a kinetic friction Sled force directed to the left Crate opposes this motion.

College Physics
11th Edition
ISBN:9781305952300
Author:Raymond A. Serway, Chris Vuille
Publisher:Raymond A. Serway, Chris Vuille
Chapter1: Units, Trigonometry. And Vectors
Section: Chapter Questions
Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...
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A frog is resting on a slope. Given as shown in 4.12, what can you say about the friction force acting on the frog?
A. There is no friction force.
B. There is a kinetic friction force directed up the slope.
C. There is a static friction force directed up the slope.
D. There is a kinetic friction force directed down the slope.
E. There is a static friction force directed down the slope.

KEY CONCEPT
FIGURE 4.12 Kinetic and static friction are parallel to the surface.
The sled is moving to the right
but it is slowing down . . .
The woman is pulling to the left,
but the crate doesn't move ...
... because a static friction
force directed to the right
opposes this motion.
... because a kinetic friction
Sled force directed to the left
Crate
opposes this motion.
Transcribed Image Text:KEY CONCEPT FIGURE 4.12 Kinetic and static friction are parallel to the surface. The sled is moving to the right but it is slowing down . . . The woman is pulling to the left, but the crate doesn't move ... ... because a static friction force directed to the right opposes this motion. ... because a kinetic friction Sled force directed to the left Crate opposes this motion.
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