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MHT CET 2021 (24 Sep, Shift 1) · Energy in SHM

Energy in SHM question from MHT CET 2021 (24 Sep, Shift 1)

Q61MHT CET 2021 · 24 SEP · SHIFT 1Medium

Energy in SHM

A body is executing S.H.M. under the action of force having maximum magntude $50\text{ N}$ . When its energy is half kinetic and half potential; the magnitude of the force acting on the particle is

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Answer: (d)

$KE = PE \Rightarrow x = \frac{A}{\sqrt{2}}$ .
$F = kx$ , and $F_{max} = kA = 50$ N.
$F = \frac{50}{\sqrt{2}} = 25\sqrt{2}$ N
So the answer is (d) $25\sqrt{2}$ N.

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