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28 September, 04:20

A ball is dropped out a wimdow that is 36 feet high. how long does it take for the ball to hit the ground

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  1. 28 September, 04:37
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    36 feet to metres = 10.97

    first find the final velocity

    vf^2 = vi^2 + 2ad

    vf^2 = 0 + 2 (9.81) (10.97)

    vf^2 = 215.2314

    vf = 14.6708

    vf = vi + at

    at = vf - vi

    t = (vf - vi) / a

    t = (14.6708) / 9.81

    t = 1.4955seconds
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