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Which one of the following statements is true for the speed v and the acceleration a of a particle executing simple harmonic motion?

1. When v is maximum, a is zero
2. When v is maximum, a is maximum
3. Value of a is zero, whatever may be the value of v
4. When v is zero, a is zero

Correct answer: When v is maximum, a is zero

Solution

In simple harmonic motion, the speed is maximum at the equilibrium position where the acceleration is zero because the restoring force is zero at that point.

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