The Student Room Group
Uni students - Complete our survey >>
Uni students - Complete our survey >>
Uni students - Complete our survey >>

Vector triangles

triangle.PNG
So I've got these forces acting on an object and it wants me to create a vector triangle (it's in equilibrium).
How do you work out the angles in the triangle when you are just given the angles to the horizontal? I worked it out by making a right angled triangle for T1 and T2 (bit hard to explain) but was wondering what the best way to do it is because in textbooks they don't tell you how you find the angles. Rough sketch of what the triangle would look like below:
Attachment not found
(edited 7 years ago)
Untitled.png4.6KB
you work ou the angle to the vertical force by minusing 90 and the horizontal angles. To get to the vertical which is the weight in this case.
Reply 2
Avatar for HazNut134
HazNut134
OP
5
Original post by Roadman123
you work ou the angle to the vertical force by minusing 90 and the horizontal angles. To get to the vertical which is the weight in this case.


So you do -90 - horizontal angle? Or am I getting the wrong idea?
90-horizontal angle=Angle to the vertical
sorry about that.
(edited 7 years ago)
Reply 4
Avatar for HazNut134
HazNut134
OP
5
Original post by Roadman123
90-horizontal angle=Angle to the vertical
sorry about that.


Thanks, makes a lot more sense now, only problem is with vector T2 because it goes in the opposite direction... The rule still works but I was kinda struggling to visualize it, am I getting the right idea here?

Untitled2.png
help.jpghere is my an image if this helps.
(edited 7 years ago)
help.jpg30.1KB
Reply 6
Avatar for HazNut134
HazNut134
OP
5
Yeah that helps a lot, thanks :biggrin:

Quick Reply

Related discussions

Latest

Trending

Trending

Articles for you