The evil monkey is using a 2000 W motor to lift a 200 kg piano up 5 m. About how long will it take him? *
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1) P = Wt t =
2) mgh = mv22 v = Simplify your answer.
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Answer:
a = | -10m/s^2 | (minus because it is pulled against gravity)(absolute value as it is a dot product)
m = 200 kg
s = 5m
t= ?
P= FS/t
2000 = (200*10)(5)/t
2000/2000 = 5/t
1=5/t
t= 5 seconds
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