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20 November, 04:56

A stone is dropped from a bridge abd it hits the water 2.2 seconds later how high is the bridge above the water

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  1. 20 November, 08:41
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    h = 23.716 m

    Explanation:

    Given that,

    The time taken by the stone to hit the water is, t = 2.2 s

    Height of the bridge above the ground, h = ?

    The distance that the body will fall through the time is given by the formula

    S = 1/2 gt² m

    Where,

    g - acceleration due to gravity

    Substituting the values in the above equation

    S = 1/2 x 9.8 m/s² x (2.2 s) ²

    = 23.716 m

    Therefore, the height of the bridge from the surface of the water is h = 23.716 m
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