Q1(a)Cross section of a beam is as shown in Figure Q1(a),determine;(i)center of gravity with respect to bottom edge AB;(ii)second moment of area of the section about AB.200300100ABFigure Q1(a)(take all dimensions in milli meters)(b)If a concentric hole of diameter100 mm drilled on the circular section inQ1(a), explain its effect on the center of gravity with respect to 'AB'.

We are to find the center if gravity of the given composite shape , and the moment of inertia about…

Answered: (i) center of gravity with respect to…

Engineering

Mechanical Engineering

(i) center of gravity with respect to bottom edge AB3; (ii) second moment of area of the section about AB.

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

Q1(a)
Cross section of a beam is as shown in Figure Q1(a),determine;
(i)
center of gravity with respect to bottom edge AB;
(ii)
second moment of area of the section about AB.
200
300
100
A
B
Figure Q1(a)
(take all dimensions in milli meters)
(b)
If a concentric hole of diameter100 mm drilled on the circular section in
Q1(a), explain its effect on the center of gravity with respect to 'AB'.

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