Question Detail

PHY 101 Friction Objective Question
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Question

Which of the following statements about static and kinetic friction is true, based on the lecture?
Options
A The maximum static friction is always less than kinetic friction.
B Kinetic friction is typically greater than the maximum static friction.
C The maximum static friction is typically greater than kinetic friction.
Correct Answer
D Static and kinetic friction are always equal.
Correct Answer

Option C is the correct answer.

Detailed Explanation

The lecture implies this by stating that when the body starts sliding, the magnitude of frictional force decreases to a value f_k. This decrease indicates that f_s,max is typically greater than f_k.

Hint

Think about the force needed to start an object moving versus the force needed to keep it moving at a constant speed.

Question Info

Course: PHY 101
Topic: Friction
Type: Objective
Difficulty: Not specified
Question 521 of 1250
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