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If a ball is dropped from from 288 ft above the ground, how long does it take to reach ground level?

  • math -

    The distance S for a free falling object from rest over t seconds is:
    S=(1/2)gt²
    where
    g=9.8 m.s-2
    S=288m
    Solve for t.
    solve for t.

  • math -

    Be cautious about units on this problem. The problem gives the distance in feet. Gravitational acceleration in English units is about 32 ft/sec^2 .

  • math -

    Oops. Use g=32.2 f s-2
    Thanks Qudditch.

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