Asked by Anonymous

A small 700 g ball on the end of a thin, light rod is rotated in a horizontal circle of radius 1.5 m. Calculate the torque needed to keep the ball rotating at a constant angular speed if the air resistance experienced by the ball is 0.1200 N. Ignore the rods moment of inertia and air resistance. Hint: Treat the small ball as a particle.

Answers

Answered by Damon
Torque = .12 * 1.5 Newton meters

There is no tangential acceleration so no one cares about the mass.
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