1. Does the uphill or downhill direction matter to the speed of the marble, or is the height the contributing variable? Describe the flow of energy between the potential and kinetic along with the roller coaster. Your answer should indicate where the potential energy is greatest and least, and also where the kinetic energy is greatest and least.

Position Height Time from Photogate A Distance Traveled 5 34.5 Position Speed Of Marble Height 0.0436 1.9 10 5 37 43.58 34.5 0.0237 1.9 10 15 33.5 80.17 37 0.0191 20 1.9 15 25.5 99.48 33.5 0.0157 1.9 25 20 121.02 25.5 23 0.0142 1.9 25 30 9.5 133.80 23 0.0122 1.9 30 35 6.5 155.74 9.5 0.0119 1.9 35 40 159.66 6.5 5 0.0115 1.9 40 45 165.22 4.5 0.0114 1.9 45 166.67 50 5.5 4.5 0.0081 1.9 50 55 234.57 5.5 8 0.0085 1.9 55 223.53 8 60 21 0.0136 1.9 60 139.71 21 65 24.5 0.0173 1.9 65 109.83 24.5 70 27.5 0.0223 1.9 70 85.20 27.5 75 30 0.0309 1.9 75 61.49 80 30 32 0.0335 1.9 80 56.72 32 85 31.5 0.0332 1.9 85 57.23 31.5 90 30.5 0.0264 1.9 90 71.97 30.5 95 28 0.0211 1.9 95 90.05 28 100 25 0.0161 1.9 100 118.01 25 105 22 0.0142 1.9 105 133.80 22 110 18.5 0.0125 1.9 110 152.00 18.5 115 15 0.0116 1.9 115 163.79 15 120 12.5 0.0111 1.9 120 171.17 12.5 125 11 0.0109 1.9 125 174.31 11Height and Speed vs. Position 250 240 230 220 210 200 190 180 170 . (cm) 160 150 140 130 Speed (cm/sec) 120 110 .6898588888 5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 100 105 110 115 120 125 130 135 Position (cm) . Speed Of Marble . Height