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19-03-2024
Physics

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How much power is needed to lift a 5000-kg elevator up 30 m in 14 s? Give your answer in units of kW. You may ignore friction and other inefficiencies, and assume that |g| = 9.81 m/s².
a) 20 kW
b) 30 kW
c) 40 kW
d) 50 kW

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