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A bicycle wheel has a diameter of 64.0 cm and a mass of 1.76 kg. Assume...

A bicycle wheel has a diameter of 64.0 cm and a mass of 1.76 kg. Assume that the wheel is a hoop with all of the mass concentrated on the outside radius. The bicycle is placed on a stationary stand and a resistive force of 119 N is applied tangent to the rim of the tire.

(a) What force must be applied by a chain passing over a 8.99 cm diameter sprocket if the wheel is to attain an acceleration of 4.53 rad/s2?
N

(b) What force is required if the chain shifts to a 5.60 cm diameter sprocket?
N

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