A body of weight W is required to move up the rough inclined plane whose angle of inclination with the horizontal is $$\alpha $$. The effort applied parallel to the plane is given by (where $$\mu $$ = $$\tan \varphi $$ = Coefficient of friction between the plane and the body)

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Q. A body of weight W is required to move up the rough inclined plane whose angle of inclination with the horizontal is $$\alpha $$. The effort applied parallel to the plane is given by (where $$\mu $$ = $$\tan \varphi $$  = Coefficient of friction between the plane and the body)

(A) P=Wtanα

(B) P=Wtan(α+φ)

(C) P=W(sinα+μcosα)

(D) P=W(cosα+μsinα)

Correct Answer - Option(C)
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