2 Three displacement vectors of a croquet ball are shown in Figure
3 P3.36, where $|\vect{A}| = 20.0\U{units}$, $|\vect{B}| =
4 40.0\U{units}$, and $|\vect{C}| = 30.0\U{units}$. Find \Part{a} the
5 resultant in unit-vector notation and \Part{b} the magnitude and
6 direction of the resultant displacement.
14 Vector a = Vector((0,0), mag=20u, dir=90, "$\vect{A}$");
16 Vector b = Vector((0,0), mag=40u, dir=45, "$\vect{B}$");
18 Vector c = Vector((0,0), mag=30u, dir=-45, "$\vect{C}$");