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12 June, 01:06

If the window is 11 m above the ground, find the time the stone is in flight.

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  1. 12 June, 04:15
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    d=vi*t + (1/2) gt²

    d=11 m

    g=9.8 m/s²

    vi=0 m/s

    11 m=0 m/s*t + (1/2) 9.8 m/s²t²

    11 m=4.9 m/s²t²

    t²=11 m / 4.9 m/s²

    t=√ (11 m / 4.9 m/s²) = 1.489 ... s≈1.5 s

    Answer: the time the sone is in flight is 1.5 s
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