1. The problem statement, all variables and given/known data I am not a student, but one poster was kind enough to answer my stupid question last week, and I was wondering if anyone would mind if I posted another stupid question. When an object is moved in a specific direction, how is the direction of momentum stored or recorded. By this I do not mean how is the vector calculated, but how is the information stored (as a particle?). Also is any research being done into this if the answer is not known. 2. Relevant equations None 3. The attempt at a solution Absolutely none.