A block of mass 4 kg is kept on a rough horizontal surface. The coefficient of static friction is 0 . 8 . If a force of 19 N is applied on the block parallel to the floor, then the force of friction between the block and floor is

Question

A block of mass 4 kg is kept on a rough horizontal surface. The coefficient of static friction is 0 . 8 . If a force of 19 N is applied on the block parallel to the floor, then the force of friction between the block and floor is, 32 N, 18 N, 19 N, 9.8 N

MARKS App · Accepted Answer

f = μ m g = 0.8 × 4 × 10 = 32 N Applied force F f therefore, the force acting on the block will be 19 N.

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