A has a length 3.76 cm and is at an angle of 34.5 degrees above the
positive x-direction. B has a length 4.53 cm and is at an angle of
34.1 degrees above the negative x-direction. What is their sum?
If C = A + B, then: Cx = Ax + Bx Cy = Ay + By.
The resultant vector is: C = -0.65 cm + 4.67 cm
Or, express the resultant in terms of its magnitude and direction.
C2 = Cx2 + Cy2 = 0.652 + 4.672 or C = 4.72 cm.
The resultant vector has magnitude 4.72 cm and is rotated 97.9 counterclockwise from the +x direction.