Find the components for F (AC)?

  • Thread starter sfgradv
  • Start date
  • #1
sfgradv
16
0
I don't know how to start off. What steps do I have to take to solve this problem? I am completely lost.
 

Attachments

  • 2-13.JPG
    2-13.JPG
    36.9 KB · Views: 329

Answers and Replies

  • #2
Doc Al
Mentor
45,447
1,907
You are given one force: 300 lbs acting in the C to A direction (the angle is given). You need to find out what force, acting in the B to A direction, that when added to the first force gives a resultant equal to 500 lbs.

Call the unknown force F. Now add the two forces (by adding their components). Set the magnitude of the resultant equal to 500 lbs to solve for F.
 
  • #3
sfgradv
16
0
I have to find the components for F (AC)?
 
  • #4
Doc Al
Mentor
45,447
1,907
You need to find the components of both forces. But you are given the angles, so use some trig.
 
  • #5
sfgradv
16
0
I am able to find the components for AC but how do I get the components for AB using the angles? Is there a formula for it?
 
  • #6
Doc Al
Mentor
45,447
1,907
You find the component for the force along BA the same way you found the components for the force along CA. The difference is that you don't know the magnitude of the BA force, but that's what you will solve for. Call the magnitude of that unknown BA force "F" (or some other symbol of your choice).
 

Suggested for: Find the components for F (AC)?

Replies
3
Views
254
Replies
3
Views
2K
  • Last Post
Replies
7
Views
370
Replies
4
Views
409
  • Last Post
Replies
2
Views
368
Replies
26
Views
382
  • Last Post
Replies
21
Views
548
  • Last Post
Replies
12
Views
430
Top