3 The object below can rotate in the plane of the page about a fixed axis at A. The objectis symmetric about A in the vertical and horizontal directions. A time=0, the object isrotating counterclockwise at 5 rad/s. The material has a uniform area density of 120kg/m².a. What is the mass moment of inertia of the object about Point A?b. The net moment applied about Point A is shown on the graph. What is the angularvelocity, w₁5, of the object at t-15 seconds?MA [Nm]160.15 m120 kg/m²0.3 mHwo = 5 rad/sA0.8 m0.3 m0.6 m0-80.15 m1015time [s]

Answered: Image /qna-images/answer/64ac7dea-0ec3-4e3f-a4d7-207b41faa802.jpg

3 The object below can rotate in the plane of the page about a fixed axis at A. The object is symmetric about A in the vertical and horizontal directions. A time=0, the object is counterclockwise at 5 rad/s. The material has a uniform area density of 120 rotating kg/m². a. What is the mass moment of inertia of the object about Point A? b. The net moment applied about Point A is shown on the graph. What is the angular velocity, w₁5, of the object at t=15 seconds? MA [Nm] 16 0.15 m 0 -8 120 kg/m² wo = 5 rad/s 0.3 m 0.3 m 0.6 m 10 0.15 m 15 0.8 m time [s]

3 The object below can rotate in the plane of the page about a fixed axis at A. The object is symmetric about A in the vertical and horizontal directions. A time=0, the object is counterclockwise at 5 rad/s. The material has a uniform area density of 120 rotating kg/m². a. What is the mass moment of inertia of the object about Point A? b. The net moment applied about Point A is shown on the graph. What is the angular velocity, w₁5, of the object at t=15 seconds? MA [Nm] 16 0.15 m 0 -8 120 kg/m² wo = 5 rad/s 0.3 m 0.3 m 0.6 m 10 0.15 m 15 0.8 m time [s]

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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Concept explainers

Center of Gravity and Centroid

The term center of gravity indicates the position or location of a point about which the whole weight of a body or system is supposed to be concentrated, which means the whole weight of the body or system works through this point. It is closely related to mass distribution. For all positions of the body, the center of gravity would be a single point.

Question

3 The object below can rotate in the plane of the page about a fixed axis at A. The object
is symmetric about A in the vertical and horizontal directions. A time=0, the object is
rotating counterclockwise at 5 rad/s. The material has a uniform area density of 120
kg/m².
a. What is the mass moment of inertia of the object about Point A?
b. The net moment applied about Point A is shown on the graph. What is the angular
velocity, w₁5, of the object at t-15 seconds?
MA [Nm]
16
0.15 m
120 kg/m²
0.3 m
H
wo = 5 rad/s
A
0.8 m
0.3 m
0.6 m
0
-8
0.15 m
10
15
time [s]

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