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How Long Will It Take a 7

Question 43

Multiple Choice

How long will it take a 7.08 hp motor to lift a 250 kg beam directly upward at constant velocity from the ground to a height of 45.0 m? Assume frictional forces are negligible. How long will it take a 7.08 hp motor to lift a 250 kg beam directly upward at constant velocity from the ground to a height of 45.0 m? Assume frictional forces are negligible. A) 20.9 s B) 1.56 × 10<sup>4</sup> s C) 2.18 × 10<sup>4</sup> s D) 39.7 s


A) 20.9 s
B) 1.56 × 104 s
C) 2.18 × 104 s
D) 39.7 s

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