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    Coo9's Avatar
    Coo9 Posts: 1, Reputation: 1
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    #1

    Jun 6, 2009, 09:14 AM
    Physic velocity final
    What is the velocity of the ball as it passes
    The point A on its way up, where OA is one
    Third the maximum heigh. The max height is 5 m. the accel is 10 m/s
    Unknown008's Avatar
    Unknown008 Posts: 8,076, Reputation: 723
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    #2

    Jun 6, 2009, 11:06 AM

    Use



    {where v is the final velocity,
    u the initial velocity,
    a the acceleration due to gravity,
    s the displacement of the ball.}

    To find the initial velocity that the ball is thrown. Put the values v=0, u=? a=10 and s=5.

    Now you know u, use the same formula again to find the velocity when the displacement is a third of 5 m.

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