(Answered) A ball is dropped from 136 ft above the ground assume that

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A ball is dropped from 13.6 ft above the ground. Assume that air-drag is negligible in this case.

(a) At what height is half of its energy kinetic and half potential?

Blank = ft

(b) Using energy considerations only, what is the velocity of the ball just as it hits the ground?

Blank = ft/s

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