JEE MainPhysicsModerateWork Power & Energy

A particle of mass m is released from point A and it stops at B
find out the coefficient of friction

Show answer and solution

W_{g} + W_{f} = K_{f} + K_{i}

mg\left( \frac{3h}{4} \right) - \mu mg3h = 0 - 0 \Rightarrow \mu = \frac{1}{4}

Source: Grass-G / P-06 Physics paper 14 October.docx

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