1. The problem statement, all variables and given/known data If vector A = a( 3.0i + 4.0j) , where a is a constant, determine the value of a that makes A a unit vector. 2. Relevant equations 3. The attempt at a solution I thought the answer is 1/5, since a unit vector has a magnitude of one therefore you need to divide it so that the magnitude of the vector equal to one.