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lissydoll13
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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.
 one year ago
 one year ago
lissydoll13 Group Title
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.
 one year ago
 one year ago

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ivancsc1996 Group TitleBest ResponseYou've already chosen the best response.0
Well to move the only thing that the boy must do is beat the friction force. So if work is distance times force then:\[W=Fx=35N200m=7000J\]
 one year ago
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