FrictionHard
Question
The coefficient of friction between the block and the horizontal surface is μ as shown in figure. The block moves towards right under action of horizontal force F(figure -a). Sometime later another force P is applied to the block making an angle θ(such that tanθ = μ) with vertical as shown in (figure - b). After application of force P, the acceleration of block shall


Options
A.increase
B.decrease
C.remain same
D.information insufficient for drawing inference.
Solution

∵ μP cos θ = P sin θ
So acceleration of block remains same.
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