Hello, I have a new question that i have no idea how to go about. please advise. 1. The problem statement, all variables and given/known data Two subatomic particles collide. Initially, the more massive particle (A) is at rest and the less massive particle (B) is moving. After the collision, the velocities of A and B make angles of 67.8 and 30 degrees, respectively, to the original direction of B's motion. The ratio of the final speeds of the particles Vb / Va is 3.30. What is the ratio of the masses of the particles Mb / Ma ? 2. Relevant equations p =mV Ma Va = Mb Vb 3. The attempt at a solution No idea how to attack tha angles. please advise.