1. The problem statement, all variables and given/known data A stationary object with mass mb is struck head-on by an object with mass ma that is moving initially at speed v0. If the collision is elastic, what percentage of the original energy does each object have after the collision? KA2/K1 = ? KB2/K1 = ? 2. Relevant equations K1 = 1/2mav1a^2 + 1/2mbv1b^2 K2 = 1/2mav2a^2 + 1/2mbv2b^2 3. The attempt at a solution K1/K2A = (1/2mav1a^2 + 1/2mbv1b^2)/(1/2mav2a^2) = v1a^2/v2a^2 + mbv1b^2/mav2a^2 I'm not sure how to proceed from here and get a percentage. any help is appreciated.