Figure shows a smooth curved track terminating in a smooth horizontal part. A spring of spring const

Figure shows a smooth curved track terminating in a smooth horizontal part. A spring of spring constant 400 N/m is attached at one end to a wedge fixed rigidly with the horizontal part. A 40 g mass is released from the rest at a height of 4.9 m on the curved track. Find the maximum compression of the spring. Take g = 9.8 m/s2.
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