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A horizontal force F = mg/3 is applied on the upper surface of a uniform cube of mass m and side a which is resting on a rough horizontal surface having µS = 1/2.The distance between lines of action of mg and normal reaction N is:

(A) a/2 

(B) a/3 

(C) a/4 

(D) None

1 Answer

+1 vote
by (69.2k points)
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Best answer

Correct option: (B) a/3

Explanation:

In this case, torque of mg is balanced by torque due to normal reaction and applied force F.

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