Question

The magnitude of is 3.4. Vector lies in the second quadrant and forms an angle of with the y-axis. The components, Ax and Ay, are closest to:
Ax = +1.6, Ay = -3.0
Ax = -3.0, Ay = +1.6
Ax = -1.6, Ay = -3.0
Ax = -1.6, Ay = +3.0
Ax = +3.0, Ay = -1.6

Answer 1

Vector lies in the second quadrant:

$$A_x<0,A_y>0$$

Vector forms an angle of with the y-axis:

$$A_y>|A_x|$$

Thus,

$$A_x = -1.6, A_y = +3.0$$