A thin, semi-circular ring of mass m and radius R is pinned to ground at point O. The bar is released from rest in the position shown. Note that a = 2R, IG= mR² - ma² (a) Find the mass moment of inertia of the body about point O (b) Find the angular acceleration of the ring when released (c) Find the reaction forces on the ring at point O g

A thin, semi-circular ring of mass m and radius R is pinned to ground at point O. The bar is released from rest in the position shown. Note that a = 2R, IG= mR² - ma² (a) Find the mass moment of inertia of the body about point O (b) Find the angular acceleration of the ring when released (c) Find the reaction forces on the ring at point O g

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

Power Transmission Elements

It is defined as the energy transfer from one location to another location. The energy will start moving from the energy generation source to the energy applied position to obtain the work output. From this method, a large amount of electric energy moves from the power station to various electrical substations.

Question

Problem 4.
A thin, semi-circular ring of mass m and radius R is
pinned to ground at point O. The bar is released from
rest in the position shown. Note that a = 2R, IG =
mR² - ma²
(a) Find the mass moment of inertia of the body about
point O
(b) Find the angular acceleration of the ring when
released
(c) Find the reaction forces on the ring at point O
Ans: (b) a=0.5(g/R); (c) Ox = (mga)/(2R), Oy = mg/2
6.0
g
G
a
-R-

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