A 400 Kg Object Is Moving at 5

Multiple Choice

A 4.00 kg object is moving at 5.00 m/s EAST. It strikes a 6.00 kg object that is at rest. The objects collide elastically. The velocity of 4.00 kg object after the collision is in the SOUTHWEST direction. The speed of the 6.00 kg object after the collision is

A) 2.38 m/s.
B) 3.02 m/s.
C) 3.96 m/s.
D) 4.06 m/s.
E) 5.22 m/s.