Answered: Determine the percent reductions in…

Determine the percent reductions in both area and area moment of inertia about the y-axis caused by removal of the rectangular cutout from the rectangular plate of base band height h.

International Edition---engineering Mechanics: Statics, 4th Edition

4th Edition

ISBN:9781305501607

Author:Andrew Pytel And Jaan Kiusalaas

Publisher:Andrew Pytel And Jaan Kiusalaas

Chapter9: Moments And Products Of Inertia Of Areas

Section: Chapter Questions

Problem 9.61P: Using Ix and Iu from Table 9.2, determine the moment of inertia of the circular sector about the...

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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

Determine the percent reductions in both area and area moment of inertia about the y-axis caused by removal of the
rectangular cutout from the rectangular plate of base b and height h.
0.24h
h
0.24h
x-
-0.68b-
b
Answers:
Percent reduction in area nA = i
%
Percent reduction in area
nly
i
moment of inertia

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