• Support PF! Buy your school textbooks, materials and every day products Here!

Finding an angle with Picture

  • Thread starter hvidales
  • Start date
29
0
1. Homework Statement



2. Homework Equations



3. The Attempt at a Solution

ivfj8z.jpg


So angle 1 was giving and through that they found angle 2. I need help on how they found angle 2. The dark red arrow is a vector. This is a physics problem asking for something else but I got stuck here lol.
1. Homework Statement



2. Homework Equations



3. The Attempt at a Solution
1. Homework Statement



2. Homework Equations



3. The Attempt at a Solution
 
Last edited:
1,065
10
Add another line parallel to ground intersect x-y origin.
 

ehild

Homework Helper
15,365
1,777
The angles are congruent as their arms are pairwise perpendicular. The red vector is vertical, makes a right angle with the horizontal arm of angle 1. The other arm of angle 2 is perpendicular to the slope which is the other arm of angle 1. See picture: β=90-(90-α)=α.

ehild
 

Attachments

29
0
What happend with the x axis? I updated the picture to look better.


[url=http://postimage.org/][PLAIN]http://s17.postimage.org/h2qbp828v/Untitled.png[/url][/PLAIN]
 

Related Threads for: Finding an angle with Picture

Replies
8
Views
5K
  • Last Post
Replies
9
Views
1K
  • Last Post
Replies
5
Views
9K
Replies
4
Views
264
  • Last Post
Replies
1
Views
930
Replies
10
Views
2K
Replies
8
Views
2K
Replies
7
Views
2K
Top