Question

A block of mass m = 8 kg welded with a light string of stiffness k = 400 m/m is in equilibrium on an inclined plane with angle of inclination \theta = 30 \degree. If a variable external force is applied slowly till spring comes to its relaxed position , find work done by spring force (g = m/s)

Answer 1

Answer:

1.92 J

Explanation:

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