1. The problem statement, all variables and given/known data http://session.masteringphysics.com/problemAsset/1070538/5/12.EX46.jpg a)What is the magnitude of he angular momentum of the 200g particle relative to the origin. b) What is the direction of the angular momentum relative to the origin of the 200g particle? Into the page or out of the page. 2. Relevant equations L= r *p you can then substitute "mv" in place of "p" 3. The attempt at a solution a) Okay I'm very confused as to how I'm supposed to get the velocity. I understand that radius is found using Pythagorean Theorem, but I believe the velocity needs to be broken up. I saw that one person said v= 3(cos45-arctan(.5)) I understand the cos45, but I don't get how arctan is relevant. b) Into the page because of right hand rule? Im still not sure about this rule, its still very confusing. I've read three different methods and they just don't make any sense.