A force 'F' is continuously applied to a block that is lying on a horizontal surface. The block starts moving soon after the force is applied. The static friction was 'St' and the sliding friction was 'Sl'. What is the net force acting on the block once it has started moving?

(A) F

(B) F-St

(C) F-St-Sl

(D) F-Sl

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Solution

F-SI only.

It is bcz static friction is not present during a motion. It will ends just before the body starts to move and later kinetic friction is acting on the body.

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F-SI only. It is bcz static friction is not present during a motion. It will ends just before the body starts to move and later kinetic friction is acting on the body. Like if satisfied

F-SI only.

It is bcz static friction is not present during a motion. It will ends just before the body starts to move and later kinetic friction is acting on the body.

Like if satisfied