# Homework Help: Question about Tension

1. Oct 9, 2007

### Fire Slayer

Okay, I got an assignment from my teacher that I'm having trouble starting.

A 5.0-kilogram monkey hangs initially at rest from two vines, A and B. Each of the vines has a length of 10 meters and negligible mass. Vine A is 30 degrees above the horizon in quadrant II, and Vine B is 60 degrees above the horizon in quadrant 1.

I know that the two tensions keep the monkey at rest, so the sum of the forces = 0. But how do I calculate the tension in the vines?

2. Oct 9, 2007

### Staff: Mentor

Since you have the angles, you can find the horizontal and vertical force components. Each must add to zero, giving you two equations and two unknowns (the two tensions).

3. Oct 9, 2007

### shotgunbob

This is essentially the same type of question i asked. You have to isolate tension one from T2 and substitute. Im lost from then on lol

4. Oct 9, 2007

### Fire Slayer

when you say each, do you mean the two horizontal equal zero, and the two vertical equal zero? or each by themselves?

5. Oct 9, 2007

### Staff: Mentor

I meant that you'll get two equations:
(1) The sum of the horizontal force components = 0
(2) The sum of the vertical force components = 0