A fleet of delivery trucks operates by making use of the energy stored in a rotating flywheel. The trucks are "charged up" before leaving by using an electric motor to get the flywheel up to its top speed of 6400 revolutions per minute. If one such flywheel is a solid cylinder of weight 7000 N and a diameter of 2.3 m, how long can the truck operate before returning to base for recharging if its average power requirement is 8.4 kilowatts?

A fleet of delivery trucks operates by making use of the energy stored in a rotating flywheel. The trucks are "charged up" before leaving by using an electric motor to get the flywheel up to its top speed of 6400 revolutions per minute. If one such flywheel is a solid cylinder of weight 7000 N and a diameter of 2.3 m, how long can the truck operate before returning to base for recharging if its average power requirement is 8.4 kilowatts?

College Physics

10th Edition

ISBN:9781285737027

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter8: Rotational Equilibrium And Rotational Dynamics

Section: Chapter Questions

Problem 42P: A car is designed to get its energy from a rotating solid-disk flywheel with a radius of 2.00 m and...

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