Asked by Johnny

When I toss a ball straight up, it travels up, stops, and then falls back to by hand. When it stops to change direction, how long is it stopped?
Answered by bobpursley
The veloicty is linear

As an example

V=10- 10t so at t=1, velocity is zero. Is it zero at .999999999999 or 1.0000000001 sec? No.
Answered by Johnny
What does that tell me? Just as a point in space has no dimension while a line does, is there a period of time that has no "length",ie ifinantely short?
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