Answered

Now, in the Tracker tool, add kinetic energy, KE, and potential energy, PE, to your table. (Click on Table, then check KE and PE in the Table Columns dialog.) Also, adapt the two graphs to show kinetic energy and potential energy vs. time. (Click on the vertical axis labels; from the pop-up menu, select KE or PE.) Step forward through the video a frame at a time, tracking the process in the table and on the two graphs. Based on your observations, what can you say about your predictions in Part A and Part B concerning the potential and kinetic energy?