<P> Giving the velocity updates: </P> <Dl> <Dd> Δ v a → = J n m a n a → (\ displaystyle \ Delta (\ vec (v_ (a))) = (\ frac (J_ (n)) (m_ (a))) (\ vec (n_ (a)))) </Dd> <Dd> Δ v b → = J n m b n b → (\ displaystyle \ Delta (\ vec (v_ (b))) = (\ frac (J_ (n)) (m_ (b))) (\ vec (n_ (b)))) </Dd> </Dl> <Dd> Δ v a → = J n m a n a → (\ displaystyle \ Delta (\ vec (v_ (a))) = (\ frac (J_ (n)) (m_ (a))) (\ vec (n_ (a)))) </Dd> <Dd> Δ v b → = J n m b n b → (\ displaystyle \ Delta (\ vec (v_ (b))) = (\ frac (J_ (n)) (m_ (b))) (\ vec (n_ (b)))) </Dd>

Where does kinetic energy go in a perfectly inelastic collision