To support Kathleen's claim that all of the kinetic energy in the cue ball will be transferred to the eight ball after their collision, we should look for a graph that shows the initial kinetic energy of the cue ball being equal to the final kinetic energy of the eight ball after the collision, with the cue ball coming to rest.
This scenario typically represents a perfectly elastic collision, where kinetic energy is conserved.
- Look for a graph where:
- The initial kinetic energy of the cue ball is high (indicating it is moving).
- The final kinetic energy of the cue ball is zero (indicating it stops).
- The final kinetic energy of the eight ball is equal to the initial kinetic energy of the cue ball (indicating it moves after being struck).
Interpret the options based on this understanding:
Choose the graph that reflects this energy transfer scenario accurately. Since I can't see the graphs, select the one that matches this description: high initial energy for the cue ball and complete transfer of that energy to the eight ball, signifying that it gains motion while the cue ball loses motion.