Answered: Ex2 of the bent bar. Determine the…

Ex2 of the bent bar. Determine the moment of P about point B and about point A. The 30-N force P is applied perpendicular to the portion BC Solution:

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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Basic Terminology in Mechanics

The area of science and mathematics concerned the motion of the objects, the relation between the force matter, and motion if specified. Forces exerted over the objects result in displacements or changes in the position of an object concerning its environment. This branch of physics keeps its roots in Ancient Greece in the form of the scripts of Aristotle and Archimedes.

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Mo= 460(4) +386(2) 2610 N.m clockwise
Ex2
of the bent bar. Determine the moment of P about point B and about point
The 30-N force P is applied perpendicular to the portion BC
30N
A.
Solution:
Moment about point B
U My = P.d = 30 • 1.6 = 48 N.m v OR c.w
OR
P= P cos 45 = 30 cos 45 = 21.2N
P, = P sin 45 = 30 sin 45 = 21.2N
y = 1.6 sin 45 1.13m
x = 1.6 cos 45 = 1.13m
U Mg = P.y+ Py.x = 21.2 1.13 + 21.2 . 1.13 = 48 N.m v OR c.w c
P 30 N
APeosis
16 m
45
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