Displacement vector A is 4.5 km north. Displacement vector B is 3.0 km 50o N of E. Finds their resultant vector using the parallelogram method.

Answer 1

The diagonal z of the parallelogram is
z^2 = 4.5^2 + 3.0^2 - 2*4.5*3.0 cos140°
z = 7.07

4.5cis90° + 3.0 cis50° = 7.07 @ 74.17°

Answer 2

Can this be solved using the analytical method? If yes, can you show how to solved it? I’m having a hard time with my homework.