Bill throws a tennis ball vertically upward such that it leaves his hand with a speed of 12 m/s. Bill catches the ball at the same height from which he released it. Assume that air resistance is negligible, so the tennis ball can be considered to be in freefall, with an acceleration of magnitude g=9.80 m/s^2. Determine the maximum vertical displacement of the ball and the time it takes to reach that point.
2 answers

i dun know

2.25