4. An l-section is made up of three rectangles as shown in Figure 4. Find the moment of inertia of the section about the horizontal axis passing through the centre of gravity of the section. 65 mm 20 mm 20 mm 65 mm 20 mm

4. An l-section is made up of three rectangles as shown in Figure 4. Find the moment of inertia of the section about the horizontal axis passing through the centre of gravity of the section. 65 mm 20 mm 20 mm 65 mm 20 mm

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

Moment of Inertia

Inertia can be termed as a resistance offered by a body to change its state. A rigid body initially at rest will apply resistance when acted by an external force that tends to change its state of rest or velocity, or a body initially at motion will provide resistance in changing its state of velocity or motion for coming to a state of rest. In other words, Newton's first law of motion describes the law of inertia of a rigid body.

Question

4. An l-section is made up of three rectangles as shown in Figure 4. Find the moment of inertia of the
section about the horizontal axis passing through the centre of gravity of the section.
65 mm
20 mm
20 mm
65 mm
20 mm
110 mm

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