#38. #39. Total: 30 marks To check your answers, refer to the Module 3 Answer Guide. Section B5 INVESTIGATION - CONSERVATION OF MOMENTUM In the following investigation you will verify the law of conservation of momentum. Set up Two air pucks ride on a cushion of air, without friction, in the direction of the arrows. They collide against each other. The following diagram was drawn from a photograph taken with a stroboscopic light to show the positions of the two pucks at regular intervals. The distances on the horizontal and vertical axes on the graph below are in metres. Compare to the actual measurements you determine with your ruler to calculate the scale factor.To find the magnitude you can use either of the following methods: a. Adding horizontal and vertical components. b. Using the sine and/or cosine laws. 4. Measure the magnitude of the velocity of each puck and its angle with the horizontal after collision: a. Measure the distance travelled in one interval of time and divide it by the time. b. By finding the horizontal and vertical components of displacement between two positions, determine the angles using trigonometry. 5. Calculate the momentum of each of the pucks after collision: (remember that momentum is a vector with a direction). 6. Calculate the total momentum of the system after collision by adding the two momenta. Add them as vectors. The total momentum has a magnitude as well as a direction. a. Compare the magnitudes of the total momentum before collision and the total momentum after collision. Calculate the percentage difference between the two. b. Compare the angles between the total momentum before and after the collision. What is the difference between the two (in degrees). 7. Enumerate the possible sources of error in this experiment. 8. Draw a conclusion.LO N Figure 3.3: Positions of two pucks colliding at regular intervals Data: Mass of the larger puck: 5.4 kg Mass of the smaller puck: 3.6 kg Period of the strobe light: 1/15 s Each unit on the graph represents 1.0 m.Data: Mass of the larger puck : 5.4 kg Mass of the smaller puck: 3.6 kg Period of the strobe light: 1/15 s Each unit on the graph represents 1.0 m. Procedures: 1. Measure the magnitude of the velocity of each puck and its angle with the horizontal: a. Measure the distance travelled in one interval of time and divide it by the time. b. By finding the horizontal and vertical components of displacement between two positions, determine the angles using trigonometry. 2. Calculate the momentum of each of the pucks before collision (remember that momentum is a vector with a direction). 3. Calculate the total momentum of the system before collision by adding the two momenta. Remember to add them as vectors. The total momentum has a magnitude as well as a direction