Tue August 09, 2011 By:

A body has zero velocity and finite acceleration.Is this possible.Answer with example.

Expert Reply
Wed August 10, 2011
Yes, a body can have zero velocity but finite acceleration.
For example:

1) At the topmost point when body is thrown vertically upwards

2) At the extreme positions of body under SHM (case of spring as well as that of pendulum)

3) A ball thrown upwards on inclined surface, and at the topmost point when it reverses its velocity is zero but acceleration is not (the acceleration is component of g along inclined plane that is g sinx where x is inclination of the plane with horizontal)

All these are of course instantaneous.

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