Physics (Vectors)

Question

Find the resultant of three components, 60 km north, 100 km west, and 20 km east.

Answer 1

Does this sketch help?

Add the 100 west with 20 east by subtracting to get an equivalent 80 west.

The magnitude of the resultant then would be √(60² + 80²) = 100 km.

The direction is found by tan^-1(80/60) = 53.13° west of north or N53.13°W