JEE Main Physics 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
Answer: (C)
Solution
Maximum static friction = 0.8×4×10 = 32 N, which exceeds the applied 19 N. The block
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