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16 November, 21:17

A cat pushes a ball from a 7.00 m high window, giving it a horizontal velocity of 0.20 m/s. how far from the base of the building does the ball land? (assume no air resistance and that ay = g = 9.81 m/s2.)

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  1. 16 November, 23:43
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    Formulas are:

    h = g t² / 2

    x = v x * t

    7 m = 9.81 m/s² * t² / 2

    t² = 14 : 9.81

    t² = 1.427

    t = √1.427 = 1.19 s

    x = 0.2 m/s * 1.19 s

    x = 0.24 m

    Answer: The ball lands 0.24 m from the base of the building.
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