question

Asked by  | 19th Mar, 2013, 05:04: PM

Expert Answer:

h = 45 x 0.15 = 6.75 m
W = PE = mgh = 50x10x6.75 = 3375 J
Power = W/t = 3375/9=375 W

Answered by  | 19th Mar, 2013, 06:05: PM

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