1–2C

1–2C Why does a bicyclist pick up speed on a downhill
road even when he is not pedaling? Does this violate the con
servation of energy principle?
ANS
1-2COn a downhill road the potential energy of the bicyclist is being converted to kinetic energy, and
thus the bicyclistpicks up speed. There isno creation of energy, and thus no violation of the conservation
of energyprinciple.