Answered: A flywheel rotates about a fixed axis…

A flywheel rotates about a fixed axis and slows down from 400 rpm to 200 rpm in 2.5 minutes. Determine the angular acceleration of the body.

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

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Conservation of Energy

In physics, the rule of the conservation of energy states that energy doesn’t disappear from the atmosphere; instead, it changes its form from one type to another. Energy is one of the most important physical quantities in nature, and it cannot be created or destroyed — only transformed.

Question

A flywheel rotates about a fixed axis and slows down from 400 rpm to 200 rpm in 2.5 minutes. Determine the angular acceleration of the body.
O a. 361.3 rad/s
O b.-139.6 rad/s
O c. 0.1309 rad/s
O d. -0.1396 rad/s

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