The man lifted the 15 pound weight 2 feet above his head. How much work was done?

1 answer

Mass = 15Lb * 0.454kg/Lb = 6.81 kg.
d = 2Ft * 1m/3.3Ft = 0.606 m.

Work=F*d = Mg * d = 6.81*9.8 * 0.606 m = 40.4 J.
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