- #1
Jrlinton
- 134
- 1
Homework Statement
Homework Equations
[/B]xcomponent of vector= magnitude*cosine of theta
ycomponent of vector= magnitude*sine of theta
Basic trig operations after this. Honestly I think that I am just having trouble with the algebra
The Attempt at a Solution
Because the magnitude of the added vectors a and b must equal the magnitude of c, I added the vectors, with the exponent x as the magnitude for force b, and used Pythagorean theorem
186=((210cos(0)+xcos(144)^2+(210sin0+xsin(144))^2)^0.5
34596=(210-.81x)^2+.588x^2
34596=1.006x^2-340.2x+44100
0=1.006x^2-340.2x+4504
x=13.8,324.7
I took the 324.7 being the magnitude of force b, obviously if this was right I wouldn't be here
Many thanks for the help