HARD
JEE Main/Advance
IMPORTANT
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A particle strikes a smooth horizontal surface at an angle θ>0 and it rebounds at an angle ϕ as shown

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Important Questions on Work, Energy and Power

HARD
JEE Main/Advance
IMPORTANT

Friction between the rigid rod of mass m and wedge of mass 2m is zero while the coefficient of friction between ground and wedge is 0.1. A force F is applied on the wedge, so that rod moves with constant velocity v0=5 m s-1 in upward direction as shown. What will be the power(W) delivered by force F ? (take m=1 kg, g=10 m s-2)

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