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12 June, 12:10

Emily throws a soccer ball out of her dorm window to allison, who is waiting below to catch it.

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  1. 12 June, 16:08
    0
    Answer is:

    6.778 meters. Explanation:

    y = u t + 1/2 at²

    6 m = u sinθ + 1/2 at²

    6 m = (12) sin 30°t + 1/2 (9.81) t²

    4.905 t² + 6 t - 6 = 0

    By solving, t = 0.6522 s.

    The horizontal distance:

    x = u cosθ t

    = (12) cos 30° (0.6522)

    = 6.778 meters.
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