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If she pushes the bar 10 times in 20 seconds, how much power did she use?
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If she pushes the bar 10 times in 20 seconds, how much power did she use?

User Ivo Jansch
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First part of the question:A bodybuilder loads a bar with 550 Newton's (-125 pounds)of weight and pushes the bar over her head 10 times. Each time he lifts the weight 0.5 meters. How much work (J) does she do?


User Faber
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