physics

A bicycle tire has a mass of 2.54 kg and a radius of 0.346 m.
(a) Treating the tire as a hoop, what is its moment of inertia about an axis passing through the hub at its center?
kg · m2

(b) What torque is required to produce an angular acceleration of 0.710 rad/s2?
N · m

(c) What friction force applied tangentially to the edge of the tire will create a torque of that magnitude?
N

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