Question

Find the megnitude of the following vector

Answer 1

Explanation:

Apply the equation. to find the magnitude, which is 8.6.

Apply the equation theta = tan–1(y/x) to find the angle: tan–1(–7.0/–5.0) = 54 degrees. However, note that the angle must really be between 180 degrees and 270 degrees because both vector components are negative.