At the beginning of a basketball game, a referee tosses the ball straight up with a speed of 5.4 m/s. A player cannot touch the ball until after it reaches its maximum height and begins to fall down. What is the minimum time that a player must wait before touching the ball?

2 answers

(5.4 m/s)/g

That is how long it takes for the speed to reach zero, which occurs at the maximum height.

g is the acceleration of gravity. I assume you know its value.
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