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22 June, 01:17

A child drops a ball from a window. The ball strikes the ground in 3 seconds. What is the velocity of the ball the instant before it hits the ground?

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  1. 22 June, 04:46
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    29.4 m/s

    Explanation:

    Given:

    v₀ = 0 m/s

    a = 9.8 m/s²

    t = 3 s

    Find: v

    v = at + v₀

    v = (9.8 m/s²) (3 s) + 0 m/s

    v = 29.4 m/s
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