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The power expended when a 10 N barbell is raised 2.0 m in 2 s is?
Wiki User
∙ 13y ago
Power = Energy / unit time
Energy = Force * distance
Power = (Force * distance)/time
= (10 N * 2.0 m) / (2 sec.)
= 10 N*m/s = 10 J/s (1 J = 1 N*m)
= 10 W (1 watt = 1 J/s)
Wiki User
∙ 13y ago
Wiki User
∙ 15y ago10 watts
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