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question

Asked by 19th March 2013, 5:04 PM
Answered by 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 Expert 19th March 2013, 6:05 PM
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