All Questions
2 questions
24
votes
7
answers
10k
views
Can an object *immediately* start moving at a high velocity?
What I mean is, suppose a ball is fired from a cannon. Suppose the ball is moving at 100 m/s in the first second. Would the ball have started from 1m/s to 2m/s and gradually arrived at 100m/s? And is ...
- 389
2
votes
9
answers
111k
views
Why isn't the acceleration at the top point of a ball’s journey zero?
When I shoot a ball vertically upward, its velocity is decreasing since there is a downward acceleration of about $9.8\,\mathrm{ms}^{-2}$.
I have read that at the top most point, when $v = 0$, the ...
- 1,790