Three different forces

  • Thread starter barthayn
  • Start date
  • #1
87
0

Homework Statement


Three forces at on an object. A 35-N force acts an angle of 20^o relative to a 60-N force. A 40-N force acts at an angle of 75^o relative to the 60-N force on the opposite side of the 35-N force. Determine the equilibrium of the three forces.

Force 1 = 60 N
Force 2 = 35 N
Force 3 = 40 N

Homework Equations


Sine law
Cosine law


The Attempt at a Solution



I have no idea how to do this because my teacher only taught me about the forces dealing with two forces acting on an object.
 

Answers and Replies

  • #2
29
0
Draw yourself a diagram. Choose a coordinator of 0,90,180,270 degrees. What ever force is not on the coordinator could be broken down into x and y component.
That is how I would do it.
 
  • #3
87
0
that is how I would do it as well. However, my teacher will want vectors and not coordinators. How does one do it with vectors?
 

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