a 71 kg bike racer climbs a 1300-m long section of road that has a slope...
Homework Answers
The maximum height the racer can climb : sin 4.3°= h / 1300
=> h = 97.5 m
At this point the potential energy : PE = mgh = ( 71 kg )( 9.81
m/s2 )( 97.5 m ) = 67.9 kJ
At the beginning, PE = 0 so the change of PE : delta PE = 67.9kJ
.....Answer .
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