I'm mainly focused on Computer Science, but I am trying to create one simulation where I need to resolve collisions between points with mass and absolute velocities. Imagine having: $point = <v_x, v_y, m>$ \ $v_x$ is **velocity in x axis**,\ $v_y$ **velocity in y axis**\ $m$ is **mass** we have two points that we know, that they are colliding with each other. How can we measure the velocities of particles after collision? I have almost no background in physics but I'm highly interested to learn something so please, I would also love to have some materials from whose I could deduct formula.