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4 October, 17:41

If a stone with the original velocity of 0 is falling from a ledge and takes 8 seconds to hit the ground, what is the the final velocity of the stone?

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  1. 4 October, 17:56
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    To answer this question, we will use the equation of motion:

    v = u + at where:

    v is the final velocity that we need to calculate

    u is the initial velocity of the stone = 0 m/sec

    a is the acceleration = 9.8 m/sec^2

    t is the time = 8 seconds

    Substitute in the above equation to get the final velocity as follows:

    v = 0 + 9.8 (8) = 78.4 m/sec

    Based on the above calculations:

    final velocity of the stone = 78.4 m/sec
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