Problem 3-9 - Vector sum - Part 2 (b) - False

Find the magnitude and direction of the sum of the vectors \(A + B + C\) using the component technique. Assume two significant digits.
\(A = 20\; km\) north, \(B = 30\; km\) east, \(C = 50\; km\; 55 ^\circ\) west of north.

Accumulated Solution

graph indicating magnitude of direction (b)

Correct!

We must add the x and y components of \(\text{A, B, C}\) to get the \(x, y\) components of \(\text{R.}\)
 
The \(x\) component of \(\text{A}\) is (in \(km\)):

(A)   \(20\)

(B)   \(-20\)

(C)   \(0\)