1. The problem statement, all variables and given/known data Vector A = (2x-y)m and Vector B= (x+ay)m (a is alpha, m is meters) If |A+B|=5m, determine the possible values of a. 2. Relevant equations The magnitude of A= sqrt 5 3. The attempt at a solution |A^2 + B^2|=5^2 |(2x-y)^2 + (x+ay)^2|= 5^2 |(2x-y)^2 + (x+ay)^2|= 25 I cannot figure out how to solve this problem. Please help!