Question

When a moving body is suddenly stopped, then:

A

Frictional force increases.

B

Friction force remains same as it was while the car was moving.

C

Friction force reduces but has a non zero value.

D

Frictional force reduces to zero as it is a self adjusting force.

Easy

Solution

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Correct option is
D

Frictional force reduces to zero as it is a self adjusting force.

Frictional force arises when there is a relative motion between two surfaces. When body is stopped means there is no relative motion and no resultant force is there hence frictional force acting becomes zero.

Solve any question of Laws of Motion with:-

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