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01-03-2016
Physics

contestada

How much potential energy does a 40-N medicine ball gain when it is lifted 5 m? Select one:
a. 20 J
b. 100 J
c. 200 J
d. 1,000 J

Respuesta :

olemakpadu olemakpadu

01-03-2016

PE = mgh

Where m= mass, g = acceleration due to gravity, h = height

But here: mg = weight = 40N, h = 5m

PE = (mg)*h = 40 * 5 = 200 J C.

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