When is it possible for velocity to be zero for an object that would be in motion?

1 Answer
Aug 14, 2017

When object is changing direction vertically. It's pretty easy to think one up.

Explanation:

While velocity is a measure of speed in a vector, acceleration measures the change of speed (also in a vector).

If velocity is #0#, that means the object is not moving, but with acceleration present, there is a force acting on the object.

A common example is the vertex of an inverted parabola (along the #x#-axis). Velocity slows to a halt, but is subjected to an acceleration of #9.8# #m/s^2# #["down"]#.

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Hope this helps :)