science

A ball rolls off the edge of a tabletop and then lands on the floor 80 cm away from the base of the table. if the table is 1.20 high what is the initial velocity?

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  1. time to fall 1.2 m:
    h=4.8t^2=1.2
    t= sqrt(1.2/4.8)

    so velocity=.8m/time

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    bobpursley

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