A 1200 kg car is moving at 5.0 m/s EAST.It strikes an 1800 kg car at rest.The cars have an elastic collision and move in the EAST or WEST direction.The relative velocity between the cars after the collision is
A) 3.0 m/s WEST.
B) 1.0 m/s EAST.
C) 4.0 m/s EAST.
D) 5.0 m/s EAST.
E) 1.0 m/s WEST.

Question

Quizplus · Accepted Answer

The Answer of A 1200 kg car is moving at 5.0 m/s EAST.It strikes an 1800 kg car at rest.The cars have an elastic collision and move in the EAST or WEST direction.The relative velocity between the cars after the collision is
A) 3.0 m/s WEST.
B) 1.0 m/s EAST.
C) 4.0 m/s EAST.
D) 5.0 m/s EAST.
E) 1.0 m/s WEST.

A 1200 Kg Car Is Moving at 5