3. A uniform slender bar with mass, m, is shown below. The block is suddenly removed. Pin A is frictionless. Find: a) The initial angular acceleration of the bar b) The force reactions at point A when the rod reaches the horizontal position 00 B y X

3. A uniform slender bar with mass, m, is shown below. The block is suddenly removed. Pin A is frictionless. Find: a) The initial angular acceleration of the bar b) The force reactions at point A when the rod reaches the horizontal position 00 B y X

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

Axial Load

When a bar of the uniform cross-section is acted by a load, such that the load acts along the longitudinal axis of the bar, such kinds of loadings are known as axial loadings. In general terms, a load is an external force acting on a component. An axial load acts perpendicular to the geometric cross-section of the component. Based on the direction of the application of the load, an axial load can be tensile or compressive. The analysis of bodies under the action of axial loads is generally studied under the branch of mechanics, known as statics.

Question

box the final answer (indicate the letter of the correct answer)

3. A uniform slender bar with mass, m, is shown below. The block is suddenly removed. Pin A is frictionless.
Find:
a) The initial angular acceleration of the bar
b) The force reactions at point A when the rod reaches the horizontal position
00
A₂ = -
Used with permission from "Engineering Mechanics: Dynamics," McGill/King, 4th Ed., 2003
☎ = − ½ cos0, Î;
0=-2 cos0k;
= 3 cos ;
None of the above
=-mg sint i;
₂= − ² mg sinº¸ î;
₂= mg sint, î;
B
Ã₁= m
у
mgj
Ã‚= mg
Ã₁= mg
X

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