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Translational and Rotational Movements

A passenger bus in Zurich, Switzerland derived its motive power from the energy stored in a large flywheel. The wheel was brought up to speed periodically, when the bus stopped at a station, by an electric motor, which could then be attached to the electric power lines. The flywheel was a solid cylinder with a mass of m and a diameter of d; its top angular speed was omega (w) .

1. At this angular speed, what is the kinetic energy of the flywheel?

2. If the average power required to operate the bus is P, how long could it operate between stops?

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Please see the attached file.

Note the following table which outlines the differences between translational (linear) and rotational (angular) ...

Solution Summary

The solution provides step-by-step explanations on the concept of translational (linear) and rotational (angular) movements. It also provides the numerical calculations required.