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A carrom board 4ftxx4ft square has the q...

A carrom board `4ftxx4ft` square has the queen at the centre. The queen hit by the striker moves to the front edge, rebounds and goes in the hole behind the striking line. Find the magnitude of displacement of the queen (a). from the centre to the front edge (b). from the front edge to the hole and (c). from the centre to the hole.

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When you stepped into a hole bored completely through the centre of earth, you will oscillate back and forth nearly in simple harmonic motioin. The time for each round trip is nearly 90minutes which is equal to the time-period of polar satellite orbiting close to earth.
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