A mass of 30 kg is supported from above as shown in the figure. To the nearest Newton, what is the tension in wire 1? In wire 2?

Question

wondermath · Answer

attachment

wondermath · Answer

i got the two equations but if i convert the sin thetas to decimals then the final answer wouldn't be accurate

wondermath · Answer

let me write the equations

wondermath · Answer

T1sin30+T2sin60=294
T1cos30-T2cos60=0

wondermath · Answer

how do i solve this without converting the sin and cos to decimals?

anonymous · Answer

In fact you don't need to convert them.Just try so solve a quadratic equation which you have found.

anonymous · Answer

you have to keep it on your calculator and round at the very end

wondermath · Answer

really? :O

anonymous · Answer

$$ \sqrt{3/2}T _{1}=1/2T _{2}$$ and also $$1/2 T _{1}+\sqrt{3/2}T _{2}=294$$

wondermath · Answer

how do i make it into a quadratic equation? first of all my equations are right, right?

wondermath · Answer

oh

anonymous · Answer

do you know special triagnles? and sohcahtoa?

wondermath · Answer

yeah

anonymous · Answer

Yeah your equations are right.

wondermath · Answer

oh okay thanks!

anonymous · Answer

its through that that s.t.mono got that

anonymous · Answer

if you want I can also solve it but it's better you yourself go through it