Consider two vectors ~ A and ~ B and their re- sultant ~ A + ~ B . The magnitudes of the vectors ~ A and ~ B are, respectively, 13 . 2 and 6 . 1 and they act at 110 ◦ to each other.Find the magnitude of the resultant vector ~ A + ~ B .

Answer 1

A = 13.2[0o]
B = 6.1[110o]

R = 13.2+6.1*Cos110 + i6.1*sin110 =
11.11 + 5.73i

R^2 = 11.11^2 + 5.73^2 = 156.3
R = 12.50