physics

A boy runs off the edge of a 5 foot high wall @ 2.5 ft/sec. How long will he spend in the air? How far from the base of the wall will he land?

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asked by Marina
  1. time to fall 5 feet?

    hf=ho+vivert*t-16t^2
    -5=0+0-16 t^2
    solve for time

    how far?
    distnace=2.5*time in feet.

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