use law of cosines
or, break into components and add x and y parts
If A=250g at an angle of 0 degrees and B=150g at an angle of 120 degrees, what will C be? both magnitude and direction.
2 answers
A + B = 250g[0o] + 150g[120o].
X = 250 + 150*Cos120 = 175 Grams.
Y = 150*sin120 = 130 grams.
175 + 130i = 218g[36.6o] CCW.
Tan A = Y/X.
The magnitude and direction of C for equilibrium = 218g[36.6+180] =
218g[216.6] CCW.
X = 250 + 150*Cos120 = 175 Grams.
Y = 150*sin120 = 130 grams.
175 + 130i = 218g[36.6o] CCW.
Tan A = Y/X.
The magnitude and direction of C for equilibrium = 218g[36.6+180] =
218g[216.6] CCW.
1 answer