Car A and Car B are in a crash. Car A has a total mass of 274 kg, while car B has a total mass of 272 kg. The coefficient of restitution for a collision between two cars is 0.85.
(a) If car A and car B run head-first into each other while both cars are moving at their top speed of 1.8 m/s, what are the final velocities of each car? (Take the positive x direction to be the direction car A is initially moving.)
Car A: m/s
Car B: m/s
(b) If car A is later moving at its top speed and rams into car B from behind when car B is at rest, what is the final velocity of car B? (Also taking the positive x direction to be the direction car A is initially moving.)