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16 May, 07:13

how fast is a ball going when it hits the ground after being dropped from a height of 16m the acceleration of gravity is 9.8

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  1. 16 May, 09:47
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    17.7 m/s

    Explanation:

    Given:

    y₀ = 0 m

    y = 16 m

    v₀ = 0 m/s

    a = 9.8 m/s²

    Find: v

    v² = v₀² + 2a (y - y₀)

    v² = (0 m/s) ² + 2 (9.8 m/s²) (16 m - 0 m)

    v = 17.7 m/s

    The ball is moving at a speed of 17.7 m/s when it hits the ground.
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