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A body is executing `SHM` under action of the a force of whose maximum is `50 N`. magnitude of force acting on the particle at the time when its energy is half kineic energy and half potential is (Assume potential energy to be zero at mean position).A. `12.5 sqrt(2) N`B. `12.5 N`C. `25 N`D. `25 sqrt(2) N` |
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Answer» Correct Answer - D `F_(max) = m omega^(2) A = 50 N` Given `(1)/(2) kx^(2) = (1)/(2) [(1)/(2) KA^(2)] rArr x = A//sqrt(2)` `F = m omega^(2) x = (m omega^(2)A)/(sqrt(2)) = (50)/(sqrt(2)) = 25 sqrt(2)N` |
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