The rod AB is confined to move along the inclined planes at A and B. If point A has an acceleration of 3 m/s2 and velocity of 2 m/s, both directed down the plane at the instant the rod becomes horizontal, determine the angular acceleration of the rod at this instant.
The rod AB is confined to move along the inclined planes at A and B. If point A has an acceleration of 3 m/s2 and velocity of 2 m/s, both directed down the plane at the instant the rod becomes horizontal, determine the angular acceleration of the rod at this instant.
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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Question
Do not solve for angular acceleration.
Why is the angular velocity positive 0.283? i could only get -0.283. May i know where i went wrong? My working is shown in the 2nd pic
Solve it without using the instanenous center of zero velocity.
Transcribed Image Text:ontent Copyright Nanyang Technological University
EXERCISE 3
W=0-283
vodis
The rod AB is confined to move along the inclined planes at A and B. If
point A has an acceleration of 3 m/s² and velocity of 2 m/s, both
directed down the plane at the instant the rod becomes horizontal,
determine the angular acceleration of the rod at this instant.
VA - VB + VAIS
20s asT - 2sin us S = VBcosusT + VOGinuss
+ wR x-10T
10 m
1. 2c0s45
:VBLOS45 -10o-1)
VAIB
j: -2Sin 45 VA Sin45 -C2)
V, = 2 m/s
a, = 3 m/s²
VB - - 2mls
Sub into eanci)
45
45
QLOS 45 = (-2) LO845 -1ow
w : -0283 radls
Content Copyright Nanyang Technological University
Transcribed Image Text:EXERCISE 3
The rod AB is confined to move along the inclined planes at A and B. If
point A has an acceleration of 3 m/s2 and velocity of 2 m/s, both
directed down the plane at the instant the rod becomes horizontal,
determine the angular acceleration of the rod at this instant.
10 m
В
A
VA = 2 m/s
3 m/s?
45
45
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