NDA 2016 Physics question

A particle is executing simple harmonic motion. Which one of the following statements about the acceleration of the oscillating particle is true ?

(A)It is always in the opposite direction to velocity
(B)It is proportional to the frequency of oscillation
(C)It is minimum when the speed is maximumCorrect
(D)It decreases as the potential energy increases

Answer: (C)

Solution

In SHM the acceleration is , proportional to the displacement. At the mean position () the speed is maximum and the acceleration is zero, i.e., minimum, so (c) is true. (a) is wrong because acceleration and

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Question ID VK-030596