A wooden block of mass 2 kg rests on a rough inclined plane of angel of inclination 30°, then frictional force bet inclined plane is (g = 10 m3-2) (mk = 0.2)
(A) 0.2 x 2 x 10 x sin 30°
(B) 2 x 10 x sin
30°
(C) 0.2 X 2 X 10 X cos 30°
(D) zero
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