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24 February, 10:59

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

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Answers (1)
  1. 24 February, 13:59
    0
    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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