- #1

blazeuofa

- 14

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## Homework Statement

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.

## Homework Equations

The magnitude of A= sqrt 5

## 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!