Support explanations with example data where appropriate. a. Examine the kinetic energy (KE) of the two balls and the system (the total) before and after the collisions (elastic and inelastic trials). Is this consistent with what you've learned about energy changes in collisions? Explain. b. How does the change in momentum for Ball 1 compare to the change in momentum for Ball 2, for both elastic and inelastic collision? Does this support conservation of momentum? Explain. c. How do the relative masses of Ball 1 and Ball 2 affect the location of the CM? d. Choose one trial and calculate the velocity of the CM before and after the collision. (See Center of Mass and Translational Motion document link included in the lesson directions). Show your work. Do your calculations agree with your observations and data? e. How does the velocity of the CM change during the collision? Is the motion consistent with Newton's Second Law? Explain. f. What is the relationship (if any) between the relative velocities of the objects before and after the collision? Is this the same for both types (elastic and inelastic of collisions?