Question

Two vectors A and B lie in the xy plane and
are given by
A = Ax i + Ay j
B = Bx i + By j .
where Ax = 3.58 m, Ay = 2.85 m, Bx =
7.09 m, By = -6.36 m.
Find the magnitude of R = A + B.
Answer in units of m
answer: aprox 11.23 m

Then, Find the angle (between -180degrees and +180degreeswithcounterclockwise positive) that the vec-
tor R makes from the positive x axis.
Answer in units of degrees