Activity 4: Procedure 1. Set up the angle bar as a track. Measure the length of the track and the angle of elevation between the track and the table. 2. Rearrange the kinematics equation to solve for time (second equation), and substitute the value 0.71 g SIN for (third equation). Use a distance of 80 cm for s. = 1 2 2 = 2 = 2 (0.71 SIN) 3. Release the steel sphere from the start point at the elevated end of the track and measure the time it takes for the sphere to roll from position s = 0 to a final position s