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In SHM, force at extreme position is zero. True or False?

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in Physics – Class 11 by (74.2k points)
In SHM, force at extreme position is zero. True or False?

(a) True

(b) False

I got this question at a job interview.

I would like to ask this question from Periodic and Oscillatory Motions topic in section Oscillations of Physics – Class 11

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Correct option is (b) False

Easy explanation: In SHM, the extreme position is where the particle is at instantaneous rest. Force on it is given by the relation F=-kx, where x is the distance from the equilibrium position. This shows that force is maximum at extreme positions since x is maximum. The graph of force vs position also shows the same.

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