(a) What is the loss of kinetic energy (Ki Kf) in the situation described in the example? kJ (b) What if the 1045 kg car actually moves backwards with a speed of 2.8 m/s right after the collision instead of having a perfectly inelastic collision. What is the velocity of the heavier car immediately after the collision? Use the same convention for positive direction as defined in the example: m/s (c) What is the loss of kinetic energy in this case? kJ
