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lissydoll13

  • 3 years ago

A 150 N boy rides a 60 N bicycle a total of 200 m at a constant speed. The frictional force against the forward motion of the bicycle equals 35 N. How much work does the boy do? Explain.

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  1. ivancsc1996
    • 3 years ago
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    Well to move the only thing that the boy must do is beat the friction force. So if work is distance times force then:\[W=Fx=35N200m=7000J\]

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