Activity 1: Collecting motion data for a 2D collision (nickel -> quarter) First, place the poster board flat on the floor. Then set up your phone to record the poster board from an overhead view (use a phone stand or place the phone near the edge of a table), with the poster board taking up most of the screen. Make sure to orient your recording such that your poster board is wider than it is tall. Place the quarter near the center of the poster board, a bit closer to one of the short ends (see intro). Next, using a pencil, trace the outline of the quarter onto your grid paper. This will make it easier to measure the distance traveled by the quarter after impact. (This is also the last