eta: nevermind, I totally see where I've gone wrong...i need to rotate my force diagram and split it into 2 components...i think
Hopping on the math help bandwagon here...can anyone help with a general physics problem? My question pertains to the second pic where rope A come off of the y axis and rope B comes off of the x axis:
To calculate the tension in rope A, should I use sin(60) or cos(210) ?
Iow, to calculate the sum of the forces on the x axis, should I:
-T1sin60 + T2cos45 = 0
OR
-T1cos210 + T2cos45 = 0
I've done it both ways and if I use cos210 then the tension for rope B comes out to be exactly the same for pictures(a) and (b). That doesn't make sense, or does it?
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