Vector a has a magnitude of 63 units and points due west, while vector b has the same magnitude and points 30 deg south of west. find the magnitude and direction of (a) a b and (b) a?b. specify the directions relative to due west.
A) (a) 63 units, due west; (b) 63 units, due east
B) (a) 63 units, due west; (b) 63 units, 30 degrees south of west
C) (a) 63 units, due west; (b) 63 units, 30 degrees north of west
D) (a) 63 units, due west; (b) 63 units, 60 degrees south of west