A body of weight 50 N is placed on a smooth surface. If the force required to move the body on the surface is 30 N
A body of weight 50 N is placed on a smooth surface. If the force required to move the body on the surface is 30 N, the coefficient of friction is
(A) 0.6
(B) 0.4
(C) 0.3
(D) 0.8
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