At the beginning of a basketball game, a referee tosses the ball straight
up with a speed of 4.6 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? s
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kinemaic equation
v=u-at
0=4.6-9.81xt
t=4.6/9.81 ... about half a second
