Question

A block of mass 4 kg is placed on a rough
horizontal plane. A time dependent horizontal force
F = 2t (N) acts on the block. The frictional force
between the block and plane at time t = 2 s is
(u = 0.2)
(1) 4N
(2) 8 N
(3) 10 N
(4) 12N​

Answer 1

Answer:

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