Vectors problem

[wine]

three forces F1, F2, and F3 of magnitudes 17N,20N,23N respectively act on an object and are at equilibrium.
how are the force placed relative to each other to be equilibrium?
Thank you!

 

[wine]

Vector problems

Three forces F1,F2,F3 of magnitudes 17N,20N,23Nrespectively act on an object and are at equilibrium.
1. how are the force placed relative to each other to be equilibrium
2. Find the angle between the force F1and F3
Thank you!

 

[Deleted member 4993]

three forces F1, F2, and F3 of magnitudes 17N,20N,23N respectively act on an object and are at equilibrium.
how are the force placed relative to each other to be equilibrium?
Thank you!

What are your thoughts?

Please share your work with us ...even if you know it is wrong

If you are stuck at the beginning tell us and we'll start with the definitions.

You need to read the rules of this forum. Please read the post titled "Read before Posting" at the following URL:

http://www.freemathhelp.com/forum/th...Before-Posting

Hint:

Create a triangle with sides 17, 20 and 23.

 

[wine]

1. i just know the three forces have to form a triangle
2. I get the angle between F1 and F3 by cosine law which is =57.69

a. I only know that the three forces have to from a triangle.
for b. I use cosine law and found the angle to be 58 but I am not sure if I do it right!
Thanks!!!

 

[Steven G]

for a i get the three forces have to be able to form a triangle

OK so you have a triangle. Do you know the length of any of the sides of the triangle? What about the angles?