A bicyclist pedals his bicycle along a horizontal road by standing with his enti

Question

A bicyclist pedals his bicycle along a horizontal road by standing with his entire weight upon the upper pedal from its position just as it passes the top of a pedal stroke down to its position at the bottom of the pedal stroke, then switches his weight to the other pedal. The two pedals are separated on the diameter of 0.3 m, the tires have a diameter of 1 m. The bicyclist has a mass of 60 kg, the bicycle has a mass of 12 kg. What is the torque applied to the bracket connecting the pedals when it is parallel to the ground?

Explanation / Answer

conservation of momentum i1 r1 = i2 r2

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