To find the resultant vector, you need to base the solution from the Pythagorean Theorem.
Step 1. Find z1 by adding x1^2 and y1^2.
z1= 5^2 + 0^2 = 5
Step 2. Find z2 by adding x2^2 and y2^2.
z2= -2^2 + 0^2 = 2
Step 3. Find c.
5^2 + 2^2 = c^2
c=square root of 29
c=5.39
The final answer is 5.39.
