- #1
Andy111
- 26
- 0
Homework Statement
Consider two vectors ~A and ~B and their resul-
tant ~A + ~B . The magnitudes of the vectors ~A
and ~B are, respectively, 12.1 and 7 and they
act at 130◦ to each other.
Use the law of cosines to calculate the mag-
nitude of the resultant vector ~A + ~B.