1. The problem statement, all variables and given/known data A 5.0-gram particle moving 60 m/s collides with a 2.0-gram particle initially at rest. After the collision each of the particles has a velocity that is directed 30° from the original direction of motion of the 5.0-gram particle. What is the speed of the 2.0-gram particle after the collision? 2. Relevant equations conservation of kinetic energy equation conservation of linear momentum equation and the x and y components m1v1i=m1v1fcos(theta) + m2v2fcos(phi) 3. The attempt at a solution m1=5 m2=2 m2=.4m1 theta=30 phi=30 Since the the only two variables I am missing are the two final velocities, I have tried solving one of the equations for mass2s final velocity and then subsituting that value into either the original equation or another one. Everytime i end with an answer that is not one of my choice. I am confused as to how i should go about find the final velocities.