Pre-lab You are going to be running a variety of isolated collision simulations, some with elasticity 100%, some with elasticity 50% and some with 0%. Before you run the simulations predict the following: 1) For which runs do you expect the momentum of the system to be conserved? 100% and some with 50% Elasticity is conserved. During collision not momentum of the system always remains conserved, before and after collision. 2) For which runs do you expect the kinetic energy of the system to be conserved? 0% inelastic collision, kinetic energy of the system is not conserved since energy is lost during collision. Post-Lab 1) When was momentum conserved for the system (within the accuracy of rounding errors)? Explain, by referencing the results from your Excel file. Does this match your prediction above? ? 2) Which runs conserved kinetic energy (within the accuracy of rounding errors)? Does this match your prediction above? ? 3) Note any apparent data trends in your calculated values of % kinetic energy lost (DK/Ki). What kinds of collisions tend to lose the largest fraction of their kinetic energy? ? 4) Is it possible to set up a collision so that both objects are stationary after the collision is over? If so, what initial settings did you have to use? ? 5) Set up a random run however you like, but with the “center of mass” option checked. The “X” represents the location of the center of mass of the entire system. Does the velocity of the center of mass location seem to change as a result of the collision? Does this make sense? Explain. (Recall: an alternative way of defining the momentum of a system is ptotal = mtotal vcm) ? can you help with the question marks? thanks