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A body of mass 4 kg is executing shm of ...

A body of mass 4 kg is executing shm of amplitude 0.4 m and period 2 s. Find (i) the maximum restoring force and (ii) the restoring force at a distance of 0.1 m from extreme position.

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The correct Answer is:
15.78 N, 11.84 N
(i) `F_(max)=momega^2a=4xx(2pixx2)^2xx0.4=15.78 N` (ii) `F = momega^2y=4 xxpi^2xx(0.4-0.1) = 11.84 N`
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