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A 50 kg block rests on a rough horizonta...

A 50 kg block rests on a rough horizontal surface. A force of 200 N is applied on the body. The block acquires a speed of `4 m//s`, starting from rest in 2 seconds. The value of coefficient of friction is

A

0.38

B

0.4

C

0.47

D

0.39

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The correct Answer is:
C
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