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A Bike rider traveled on his bike uphill at 20 miles per hour for two hours. To sustain...
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The cyclist travelled on his bike uphill at 20 miles per hour for two hours.
Hence his displacementis 20*2 =40 miles=(40*1609.34) m=64373.6 m
To sustain this constant speed the cyclist was exerting 50 lbs = (50*4.4482) N= 222.41 N
Therefore, the total work done by the rider during the trip, W=F*s=(222.41*64373.6) N-m
`~~1.432 * 10^7` Joules
Posted by llltkl on September 26, 2013 at 4:25 PM (Answer #1)
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