Bodies A and B have equal mass. Body B is initially at rest. Body A collides with body B in a one-dimensional elastic collision. Which statement is true?
A. BODY A COMES TO REST BODY B STARTS MOVING WITH INITIAL VELOCITY OF BODY A
B. THE MOMENTUM OF THE SYSTEM IS NOT CONSERVED
C.THE KINETIC ENERGY OF THE SYSTEM IS NOT CONSERVED
D.THE FINAL VELOCITY