Hi guys, I have a simple question involving the collision of 2 particles of different masses. Particle 1 of mass m is travelling with speed u towards particle 2 of mass 3m which is initially at rest. I have been asked to calculate the energy loss in the impact, however in my notes there is only an example of calculating the energy loss when there is the 'special case' where the masses are the same, which is to use the formula
How would I construct the above equation given the different masses I have?
The previous question asks me to find the speed acquired by v2 after the collision. I have done this by plugging in my values into the conservation of momentum formula and the law of restitution formula, and solving for v2, so that
So I have v2. Does this mean I can calculate the energy loss?