# physics

an electric motor lifts on elevator 9 m in 15s by exerting an upward force of 1.2 x 10^4 calculate the power

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1. W=fdeltax cosQ W=(l.2 x 10^4)(9)cos0degr w=108000J p=w/delta t p=108000/15 p=7200 W

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2. m,m

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