physics heeelp?

Question

Vector A is 3 units in length and lies along the positive x-axis. Vector B is 6 units in length and points along a direction 120 degrees from the positive x-axis. What’s the direction of the resultant with respect to x-axis ? (cos 60 =0.5 and sine 60=0.87)

Answer 1

X(resultant) = 3 - 6cos60 = 0
Y(resultant) = 6 sin60 = 6(0.87) = 5.22
90 degrees from the positive x axis.

Answer 2

They want you to do vector addition of these two vectors. The best approach is to find the (x,y) coordinates of A and of B. Then add each of x and y coordiantes together. The results will give you the (x,y) coordinates of the resultant vector.