eli5, when a moving object bounces off of another, does it momentarily stop moving?
In: 415
Yes.
If at one point of time the velocity of the object is positive, and at another point in time the velocity is negative (i.e. moving in the opposite direction) than mathematically there must be a moment in between those two points where the velocity is zero.
This is the [intermediate value theorem](https://en.wikipedia.org/wiki/Intermediate_value_theorem).
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