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How much power does a weightlifter expend when lifting a 50-kg barbell a vertical distance of 1.2 m in a time interval of 1.5 s?
Wiki User
∙ 13y ago
P=W/t=F.d/t=F*d*1/t=Fd/t
P=mgd/t=50kg*1.2m*10m/ss/1.5=600/1.5=400W
Wiki User
∙ 13y ago
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42
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