Rankers Physics
Topic: Oscillation

Which one of the following statements is true for the speed '$v$' and the acceleration '$a$' of a particle executing simple harmonic motion? (2004)
Value of '$a$' is zero, whatever may be the value of '$v$'
When '$v$' is zero, '$a$' is zero
When '$v$' is maximum, '$a$' is zero
When '$v$' is maximum, '$a$' is maximum

Solution:

In simple harmonic motion, speed is maximum at the mean position.\nAt this mean position, the displacement is zero, causing the restoring force and acceleration to be zero.

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