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Physics

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A ball is dropped from a height of 20m. When it bounces, it rebounds with a speed that is one half of the speed at which it hits the ground. How high does it bounce?

  • Physics -

    A man is standing on a cliff and throws a ball outward 50m/s at an angle of 53 degrees. It hits the base of the cliff in 10 seconds.
    Find:
    a) The height of the cliff
    b) the angle at which the ball goes into the sea
    c) if the ball will hit a boat 150m out to sea.

  • Physics -

    h(t) = h - g/2to^2

    After you drop the ball from a height of 20 feet and it hits the ground, it would reach a height of 15 ft
    (just multiply your h by 3/4 each time to get the heights from each time it bounces...
    20 * (3/4) = 15ft

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