Overview
Red car has a mass m = 5.79 g and blue car has a mass m= 5.13 g. They head towards each other along the x-axis moving in
opposite directions for a head-on collision. Red car comes in with a speed of up = 8.73 m/s moving to the right. Blue car is moving to the left heading towards red car with the same magnitude of momentum as red car. The collision is perfectly elastic.
1/ Find initial speed of red car and blue car?
2/ Find final speed of blue car?