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17 February, 12:10

How long will it take an object dropped from a window to fall a distance of 78.4 meters?

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  1. 17 February, 12:16
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    As you said it was dropped so in that case I'll take 78.4 meters as the height ...

    we know that

    h = ut + 0.5*g*t (sqr)

    t (sqr) = 78.4 / (0.5*9.8) [g = 9.8 ms-2]

    t = √16

    t = 4

    So it'd take 4 seconds
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