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9 July, 09:09

At the beginning of a basketball game, the referee tosses the ball straight up with a speed of 4.6m/s. A player cannot touch the basketball until it has reached maximum height and begins to fall back down. What is the minimum time a player must wait before touching the ball?

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  1. 9 July, 13:02
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    t=0.47s

    Explanation:

    the ball has uniformly accelerated movement due to gravity

    Vo=initial speed=4.6m/s

    g=gravity=-9.8m/s^2

    Vf=final speed=0, the player must wait for the ball to stop. so the final speed will be 0

    we can use the following ecuation

    T = (Vf-Vo) / g

    T = (0-4.6) / -9.8m/s^2

    T=0.47s
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