(II) A small 650-g ball on the end of a thin, light rod is

Chapter 10, Problem 10.37

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(II) A small 650-g ball on the end of a thin, light rod is rotatedin a horizontal circle of radius 1.2 m. Calculate (a) the momentof inertia of the ball about the center of the circle, and (b) thetorque needed to keep the ball rotating at constant angularvelocity if air resistance exerts a force of 0.020 N on the ball.Ignore the rods moment of inertia and air resistance.

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