Problem

An object made of two disk-shaped sections, A and B, as shown in the figure, is rotating a...

An object made of two disk-shaped sections, A and B, as shown in the figure, is rotating about an axis through the center of disk A. The masses and the radii of disks A and B, respectively are, 2.00 kg and 0.200 kg and 25.0 cm and 2.50 cm.

a) Calculate the moment of inertia of the object.

b) If the axial torque due to friction is 0.200 N m, how long will it take for the object to come to a stop if it is rotating with an initial angular velocity of -2π rad/s?

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Solutions For Problems in Chapter 10

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