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

    Nov 29, 2010, 05:18 AM
    A ball in hot air balloon free falling bodies
    A ball is dropped from a balloon at a height of 195 meters. If the balloon is rising 29.3 m/s, find the highest point reached by the ball and the time of flight.
    Unknown008's Avatar
    Unknown008 Posts: 8,076, Reputation: 723
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    #2

    Nov 29, 2010, 08:51 AM

    I'll take upwards as positive and downwards as negative.

    Use the equation:



    to find the highest speed.

    v = 0
    u = 29.3 m/s
    a = -9.8 m/s^2
    s = (h + 195) m

    The time of flight can be found using the formula:



    s = -195 m
    u = 29.3 m/s
    t = ?
    a = -9.8 m/s^2
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