In the figure, determine the character of the collision. The masses of the blocks, and the velocities before and after, are shown. The collision is
A) perfectly elastic.
B) partially inelastic.
C) completely inelastic.
D) characterized by an increase in kinetic energy.
E) not possible because momentum is not conserved.

Question

In the figure, determine the character of the collision. The masses of the blocks, and the velocities before and after, are shown. The collision is 
A) perfectly elastic. 
B) partially inelastic. 
C) completely inelastic. 
D) characterized by an increase in kinetic energy. 
E) not possible because momentum is not conserved.

Quizplus · Accepted Answer

In a completely inelastic collision, the two objects stick together and move with a common velocity after collision. Here, the two blocks stick together after collision and move with a common velocity. Therefore, the collision is completely inelastic.

In the Figure, Determine the Character of the Collision