A car is designed to get its energy from a rotating flywheel in the shape of a uniform, solid disk of radius 0.800 m and mass 600 kg. Before a trip, the flywheel is attached to an electric motor, which brings the flywheel's rotational speed up to 5.30 ✕ 103 rev/min. (a) Find the kinetic energy stored in the flywheel (in J). (b) If the flywheel is to supply energy to the car as a 10.5 hp motor would, find the length of time in hours the car could run before the flywheel would have to be brought back up to speed.
A car is designed to get its energy from a rotating flywheel in the shape of a uniform, solid disk of radius 0.800 m and mass 600 kg. Before a trip, the flywheel is attached to an electric motor, which brings the flywheel's rotational speed up to 5.30 ✕ 103 rev/min. (a) Find the kinetic energy stored in the flywheel (in J). (b) If the flywheel is to supply energy to the car as a 10.5 hp motor would, find the length of time in hours the car could run before the flywheel would have to be brought back up to speed.
College Physics
11th Edition
ISBN:9781305952300
Author:Raymond A. Serway, Chris Vuille
Publisher:Raymond A. Serway, Chris Vuille
Chapter1: Units, Trigonometry. And Vectors
Section: Chapter Questions
Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...
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A car is designed to get its energy from a rotating flywheel in the shape of a uniform, solid disk of radius 0.800 m and mass 600 kg. Before a trip, the flywheel is attached to an electric motor, which brings the flywheel's rotational speed up to 5.30 ✕ 103 rev/min.
(a) Find the kinetic energy stored in the flywheel (in J).
(b) If the flywheel is to supply energy to the car as a 10.5 hp motor would, find the length of time in hours the car could run before the flywheel would have to be brought back up to speed.
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