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Physics

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Show that 480 W of power is expended by a weightlifter when lifting a 60-kg barbell a vertical distance of 1.2 m in a time interval of 1.5 s.

  • Physics - ,

    Power = F*d/t = mg*d/t
    =(60*10)*1.2/1.5 = 480 J/s = 480 Watts.

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