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## Homework Statement

A block is suspended from two ropes so that it hangs motionless in the air. If the magnitude of T2 is 10N, what is the magnitude of T1? Here is the figure given: See attachment

Choices:

.5N

.866N

10N

17.3N

## Homework Equations

My teacher told me to use trig functions so I need to use cosine.

## The Attempt at a Solution

First I have to find the adjacent side for T2. I know the hypo is 10N.

Cos(60)= adj/10N

.5= adj/10N

.5 times 10N= 5

5 is the adjacent

Then using that... I have to find the hypo of T1. I know the adjacent is 5.

Cos(30)= 5/hypo

.866=5/hypo

.866 times 5= 4.33

What did I do wrong?