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    al-habsi's Avatar
    al-habsi Posts: 14, Reputation: 1
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    #1

    Jul 14, 2009, 09:31 AM
    Find the expression
    the basic motion equation of a projectile is given by h=(vt)-(gt^2) where h is the height in m, t is the time taken in s, v is the vertical component, g is the acceleration.

    a)Find the expression for time of flight?
    b)Specify the expression for h such that there is no real solution?
    Unknown008's Avatar
    Unknown008 Posts: 8,076, Reputation: 723
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    #2

    Jul 14, 2009, 09:43 AM

    The time of flight is obtained when the vertical displacement is zero.

    When there is no real solution, , from an equation in the form
    Unknown008's Avatar
    Unknown008 Posts: 8,076, Reputation: 723
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    #3

    Jul 14, 2009, 09:44 AM

    The time of flight is obtained when the vertical displacement is zero.

    When there is no real solution, , from an equation in the form
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