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22 April, 17:09

Anaya Goodloe decides to spike the football after a big touchdown (on Earth) and it

bounces back up off the ground and is airborne for 3.2 seconds. With what velocity did the football leave the ground after the spike?

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  1. 22 April, 19:10
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    The football leaves with the velocity, u = 15.68 m/s

    Explanation:

    Given data,

    The football bounces back up off the ground and is airborne for, t = 3.2 s

    Let the football bounces back up off the ground in the vertical direction

    The formula for time of flight is given by,

    t = 2u / g

    ∴ u = gt / 2

    Substituting the values,

    u = 9.8 x 3.2 / 2

    u = 15.68 m/s

    Hence, the football leaves with the velocity, u = 15.68 m/s
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