A 3.00 kg object is moving at 5.00 m/s EAST. It catches up to and strikes a 6.00 kg that is moving EAST at 2.00 m/s. The objects undergo an elastic collision in the EAST-WEST direction. The velocity of the 3.00 kg object after the collision is
A) 4.00 m/s EAST.
B) 1.00 m/s EAST.
C) 4.00 m/s WEST.
D) 1.00 m/s WEST.
E) 3.00 m/s EAST.

Question

Quizplus · Accepted Answer

In an elastic collision, both momentum and kinetic energy are conserved. Solving the equations for conservation of momentum and kinetic energy gives the velocity of the 3.00 kg object as 1.00 m/s EAST after the collision.

A 300 Kg Object Is Moving at 5