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September 1, 2014

Homework Help: physics

Posted by Luc on Wednesday, August 3, 2011 at 4:50am.

In loading a lorry a man lifts boxes each of weight 100N throughta height of 1.5 m. a)how much work does he do in lifting 1 box b)how much energy is transferred when 1 box is lifted c)if he lifts 4 boxes/minute@ what power is he working

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