Question: Question # 27 - My answer was marked wrong on this test. I need the correct answer and explanation for test corrections. 27. A construction

Question # 27 - My answer was marked wrong on this test. I need the correct answer and explanation for test corrections.

27. A construction laborer holds a 20 kilogram sheet of wallboard 3 meters above the floor for 4 seconds. During these 4 seconds how much power was expended on the wallboard? a. 2400 watts F = 200 N b. 320 watts c. 27 watts Ax = 3 m d. 15 watts e. None of these

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