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24 May, 02:37

A stone is dropped down a well and hits the water 2.50 s later. What is the depth from the edge of the well to the water? 61.3, 12.3, 30.6

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  1. 24 May, 02:59
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    Answer;

    30.6 m

    Explanation;

    All objects accelerate at the constant rate in the Earth's gravitational field. The gravitational acceleration, g = 9.8 m/s².

    Distance traveled by an object falling down under a constant acceleration will be given the formula;

    s = ut² + 1/2 (gt²); but u the initial velocity is o

    thus;

    S = 1/2 (gt²)

    = 0.5 * 9.81 * 2.5 ²

    = 30.65

    ≈ 30.6 m
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