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(i) Explain whatismcant by the momant of inertia of a body. (ii) Whay is there no unique value for the moment of inertia of a given body? Ci) A rigid body rotates about an axis with an angular velocity o. If the relevant moment of inertia of the body is 1, show that its rotational kinetic energy is lo.

(i) Explain whatismcant by the momant of inertia of a body. (ii) Whay is there no unique value for the moment of inertia of a given body? Ci) A rigid body rotates about an axis with an angular velocity o. If the relevant moment of inertia of the body is 1, show that its rotational kinetic energy is lo.

College Physics
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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is to be accelerated up to some - maximum rotational speed by elec- : tric motors placed at various stations along the route. If the flywheel has a momeint of inertia of 300 kg m and is accelerated to 4200 revolutions per minute at a station, calculate the kinetic energy stored in the flywheel. Assumiag that at an average specd of 54 kmm in the power required by the car is 15 kW, what is the maximum possible cistance between stations on tire car's route? (ii) What assumption did you make in the last calculation? Comment on the feasibility of the design. (W, '90]
Transcribed Image Text:is to be accelerated up to some - maximum rotational speed by elec- : tric motors placed at various stations along the route. If the flywheel has a momeint of inertia of 300 kg m and is accelerated to 4200 revolutions per minute at a station, calculate the kinetic energy stored in the flywheel. Assumiag that at an average specd of 54 kmm in the power required by the car is 15 kW, what is the maximum possible cistance between stations on tire car's route? (ii) What assumption did you make in the last calculation? Comment on the feasibility of the design. (W, '90]
1.90 (a) () Explain what is meant by the moment ef inertia of a body. (ii) Whay is there no unique value for the moment of inertia of a given body? (iii) A rigid body rotates about an axis with an angular velocity o. If the relevant moment of inertia of the body is 1, thow that its rotational kinetic energy is lo. (b) (i) A motor car is designed to run off the rotational kinetic energy stored in a flywheel in the car. The flywheel
Transcribed Image Text:1.90 (a) () Explain what is meant by the moment ef inertia of a body. (ii) Whay is there no unique value for the moment of inertia of a given body? (iii) A rigid body rotates about an axis with an angular velocity o. If the relevant moment of inertia of the body is 1, thow that its rotational kinetic energy is lo. (b) (i) A motor car is designed to run off the rotational kinetic energy stored in a flywheel in the car. The flywheel
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