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Answer to Question #40970 in Mechanics | Relativity for alzahra

Question #40970
In going from point A to B on the rough surface, the cyclist lost 200J of energy due to the
frictional force of the rough surface of the 10 m road. She started with an initial speed A v
at point A, arriving at point B with a speed of B v . The cyclist barely made it to the flat
part (point C) of the frictionless surface without pedaling


i) The speed of cyclist at point B, B v

ii) The speed of cyclist at point A, A v

iii) The coefficient of kinetic friction,mk , between the bike tires and the road.

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