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9 April, 22:59

The coaster begins with a nearly 2.9 second free fall along a 90 degree drop. What is the speed?

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  1. 9 April, 23:51
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    vf=28.449m/s~28.4m/s

    Explanation:

    vi=0m/s (initial velocity)

    a=g=9.81m/s² (acceleration due to gravity)

    vf=? (final velocity) - unknown

    t=2.9s (time)

    equation (velocity equation) vf=vi*t+a*t

    vf=0m/s*2.9s+9.81m/s²*2.9s

    vf=28.499m/s~28.4m/s
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