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Length of Time for a Cylinder to Stop Rotating: Example Question

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A solid cylinder of mass 4.1 kg and radius 23 cm rotates with angular speed of 5.0 rev/s. Another object is brought in contact with the cylinder while rotating causing a tangential force of friction equal to 2.5 N. How long will it take for the cylinder to stop?

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Solution Summary

Provides steps necessary to calculate the length of time it will take for the cylinder to stop rotating.

Solution Preview

First, known constants are: M= 4.1 kg R= .23 m angular speed = wo = 5 rev/sec = 10π rad/sec
Force applied = F Note that radius is expressed in meters and also 1 rev = 2π ...

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