Assume the following position vectors. r A B = 0 i + 0 j + 8 k r A C = − 8 i − 5 j + 8 k r A D = 5 i − 8 j + 8 k a) correct unit vector for AB? b) correct unit vector for AC? c) correct unit vector for AD?
Assume the following position vectors. r A B = 0 i + 0 j + 8 k r A C = − 8 i − 5 j + 8 k r A D = 5 i − 8 j + 8 k a) correct unit vector for AB? b) correct unit vector for AC? c) correct unit vector for AD?
College Physics
11th Edition
ISBN:9781305952300
Author:Raymond A. Serway, Chris Vuille
Publisher:Raymond A. Serway, Chris Vuille
Chapter1: Units, Trigonometry. And Vectors
Section: Chapter Questions
Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...
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Question
Assume the following position vectors.
r A B = 0 i + 0 j + 8 k
r A C = − 8 i − 5 j + 8 k
r A D = 5 i − 8 j + 8 k
a) correct unit vector for AB?
b) correct unit vector for AC?
c) correct unit vector for AD?
![3D Particle Equilibrium
Use the following information.
• The orange lines represent cables used to support the other forces.
• The red lines are the axes.
• The blue lines are used to show distances of the points.
• The cables attach to the wall at points B, C, and D.
The weight acts vertically down.
Cable AB is also vertical with the distance from A to B being the same as the vertical height from
A to C.
WALL
B
6 m
WALL
D
2 m
4 т
6 m
----.
----
12 kN
3 т
3 т
A
y
5 m
5 т
25 kN](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F5657dc2b-0235-48e8-b486-36f69ecf588a%2F3a132f21-feb1-44fb-8c74-da4d849b2cc0%2F6pdheoq_processed.png&w=3840&q=75)
Transcribed Image Text:3D Particle Equilibrium
Use the following information.
• The orange lines represent cables used to support the other forces.
• The red lines are the axes.
• The blue lines are used to show distances of the points.
• The cables attach to the wall at points B, C, and D.
The weight acts vertically down.
Cable AB is also vertical with the distance from A to B being the same as the vertical height from
A to C.
WALL
B
6 m
WALL
D
2 m
4 т
6 m
----.
----
12 kN
3 т
3 т
A
y
5 m
5 т
25 kN
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