Question

A ball player catches a ball 3.16s after throwing it vertically upward. With what speed did he throw it?

Answer 1

I'm not sure if you can solve this with this hint, but the time taken to move upwards to the max height and the time taken from the max height to return to the player are equal (t / 2).

Answer 2

\[v =v _{0}+at\] use that. and the fact that when v=0 t=3.16/2 and a=g. simplify to find v initial. i think this is the right way to do it.