A traffic light weighing 30 pounds is suspended by two wires as shown in the figure below. Find the magnitude |T1| of the tension in wire AC, and the magnitude |T2| of the tension in wire AB. (Round your answers to the nearest whole number.) picture:http://www.webassign.net/mcktrig7/7-5-063.gif

Question

anonymous · Answer

So far I have tried to find T1 and T2 by doing 22sin(60) and 30sin(45) but I've gotten the wrong answer, I don't know if that correct way to solve this problem...

anonymous · Answer

*30sin(60)

johnweldon1993 · Answer

Alright...first thing is first....30 pounds is not the weight..

The weight is 30 pounds * force of gravity(9.81m/s^2) = __?__Newtons

anonymous · Answer

Umm, you lost me a bit there.

johnweldon1993 · Answer

That's okay

The true WEIGHT of the sign...is 

$$\large 30 \text{pounds} \times 9.81 \frac{m}{s^2}$$

This will give you a TRUE weight of 294.3N    (newtons...the unit we WANT)

anonymous · Answer

okay I kinda see what you mean, but I don't remember this problem being solved that method. I'm looking at my book right now and this section talks nothing about newtons and true weight...that's why I was bit confused.

anonymous · Answer

I think I've figured it out, I think your supposed to use the law of sines...?