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7 August, 23:37

If an athlete executing a long jump leaves the ground at a 30° angle and travels 7.80 m, what was the takeoff speed

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  1. 8 August, 02:47
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    R=u^2 sin2x / g

    7.8=u^2 sin2*30 / 10

    u=9.5m/s
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