A car is designed to get its energy from a rotating flywheel in the shape of a uniform, solid disk of radius 0.700 m and mass 540 kg. Before a trip, the flywheel is attached to an electric motor, which brings the flywheel's rotational speed up to 5.50 ✕ 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.

Given : Mass (m) = 540 kg Radius (r) = 0.700 m Revolutions per minute (f) = 5.50 * 103 rev/min We…

Answered: A car is designed to get its energy…

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 0.700 m and mass 540 kg. Before a trip, the flywheel is attached to an electric motor, which brings the flywheel's rotational speed up to 5.50 ✕ 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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