Question

In a perfectly ELASTIC collision between two perfectly rigid objects

A) both the momentum and the kinetic energy of the system are conserved.

B) the momentum of each object is conserved.

C) momentum of the system is conserved but the kinetic energy is not conserved.

D) the kinetic energy of the system is notconserved.

E) the kinetic energy of the system is conserved but the momentum of the system is not conserved.