1. A 0.015 kg marble moving east at 0.225 ms-1 collides head-on with a 0.030 shooter marble moving west at 0.180 ms-1. After the collision, the smaller marble moves west at 0.315 ms-1. Assume that neither marble rotates before nor after the collision and that both marbles are moving on a frictionless surface. What is the velocity of the 0.030 kg marble after the collision? What is the change in kinetic energy? What type of collision (of the 3 types) is this and WHY?

Question

1. A 0.015 kg marble moving east at 0.225 ms-1 collides head-on with a 0.030 shooter marble moving west at 0.180 ms-1.  After the collision, the smaller marble moves west at 0.315 ms-1.  Assume that neither marble rotates before nor after the collision and that both marbles are moving on a frictionless surface.  What is the velocity of the 0.030 kg marble after the collision?  What is the change in kinetic energy?  What type of collision (of the 3 types) is this and WHY?