Concept explainers
Suppose you exert a horizontal push on a crate that rests on a level floor, and it doesn’t move. How much friction acts compared with your push?
The amount of friction acting on a crate as compared to the push.
Answer to Problem 8A
It is of same magnitude as that of the push.
Explanation of Solution
Introduction:
The friction is force which acts on a material that are in contact and acts in a direction opposite to that of motion of the object.
Now, if one is trying to give a horizontal push to a crate kept on a level floor and it does not move, then it means that the net force acting on the crate is zero. Thus, the friction force acting on a crate is exactly balanced by the horizontal push exerted on the crate.
Conclusion:
Hence, the friction force acting on a crate is of the same magnitude as that of the push exerted on the crate.
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