Physical Science
posted by Rodolfo Brown .
A cyclist applies a force of 250 N to the pedals of a bicycle. If the rear wheel applies a force of 200 N to the road surface. What is the mechanical advantage of the bicycle?

Physical Science 
drwls
M.A. = (delivered force)/(applied force)
= 0.80
What you lose in applied force, ratiowise, you gain in speed.
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