Find the least force required to drag a body of weight W, placed on a rough
inclined plane having inclination α to the horizontal. The force is applied to the
body in such a way that it makes an angle Ɵ to the inclined plane and the body is
(a) on the point of motion up the plane and (b) on the point of motion down the
plane.
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Answer: option(A)
Explanation:
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