Ranking Task 4: Bouncing Cart A cart with a spring plunger runs into a fixed barrier. The mass of the cart, its velocity just before impact with the barrier, and its velocity right after collision are given in each figure. Rank the change in kinetic energy for each cart from the least change in kinetic energy to the greatest change in kinetic energy. Negative values are less than positive values. Before After Before After 10 kg 10 kg 20 kq 20 kg -4 mis 60 -2 my/s 10 kg 10 kg 20 kg 20 kg -3 mis a = 1 mis Vm-1 mis 10 kg 10 KO F v. -5 m/s W.3 ms -2 m/s Least 1_ 2 5 6 Greatest OR All crates have the same change in kinetic energy. Explain the reasoning for your ranking. How sure were you of your ranking? Basically Guessed 1 2 4 5 6 7 8 9 10 Very Sure Ranking Tasks are adapted from A Selection of Ranking Tasks, T.L. O'Kuma, D.P. Maloney and C.J. Hieggelke, ed