lab report 5 - PHY2053L

Table 2 Bumper type Run Numbe r Velocity of cart 1 before collision (m/s) Velocity of cart 2 before collision (m/s) Velocity of cart 1 after collision (m/s) Velocity of cart 2 after collision (m/s) Part I: Magnetic 1 0.523 0 -0.427 -0.021 Magnetic 2 0.622 0 -0.453 -0.034 Part II: Hook-and-pile 3 0.441 0 0.249 -0.161 Hook-and-pile 4 0.490 0 0.207 -0.189 Part III: Both 5 0.606 0 0.042 -0.428 Both 6 0.500 0 -0.020 -0.395 Results / Calculation: 1. For each run, determine the momentum (mv) of each cart before the collision, after the collision and the total momentum before and after the collision. Calculate the ratio of the total momentum after the collision to the total momentum before the collision. Enter the values in table 3. Table 3 Run number Momentum of cart 1 before collision ( kg.m/s) Momentum of cart 2 before collision ( kg.m/s) Momentum of cart 1 after collision ( kg.m/s) Momentum of cart 2 after collision ( kg.m/s) Total momentum before collision ( kg.m/s) Total momentum after collision ( kg.m/s) Ratio of total momentum after/before 1 0.142 0 -0.116 -0.006 0.142 -0.122 0.86 2 0.169 0 -0.123 -0.009 0.169 -0.132 0.78 3 0.120 0 0.068 -0.042 0.120 0.11 0.97 4 0.133 0 0.056 -0.050 0.133 0.106 0.80 5 0.165 0 0.011 -0.113 0.165 -0.102 -0.6 6 0.136 0 -0.005 -0.104 0.136 -0.109 -0.8 2. For each run, determine the kinetic energy ( KE=1/2 mv 2 ) for each cart before and after the collision. Calculate the ratio of the total kinetic energy after the collision to the total kinetic energy before the collision. Enter the values in Table 4. Table 4