Lab # 3 Newton's Second Law OBJECTIVES . To determine the effect of increasing the magnitude of an unbalanced (or resultant) force acting on a constant mass. APPARATUS: 1 Pasco Track 2 Pasco Track stands Photo gate-timer (Pasco) 2 Laser gates (Pasco) Set of weights (total mass of 40 g) 1-500 g mass Electronic balance (one per class) String Photogate #2 Photogate #1 (At 30cm mark) Cart (At 80cm mark) (mtrolley) String Pulley Track Mass at end Stand of string Stand Table (mstring) T EPICAttach the string to the cart, and dangle the string over the pulley with the 40g weight attached to the other end. Place the cart, with the picket fence attached to it, just before gate #1, release and record the time for it to pass through the second gate. Do this a total of 3 times and record the results. Then change the unbalanced mass to 30g, by taking the 10g mass and placing it on the cart. Take 3 runs with this setup. Then do it for 20g and 10g hanging off the pulley, with 3 runs for each. *Note: any masses that are not hanging off the pulley should be in the cart to keep the entire system at a constant mass. Original Data Part A: (5 points) Total Mass is constant. Mass of Trolley: 510 . 739 mass in string Time of run trolley mass Total mass. M = mit m. (2) (seconds) Run 1 Run 2 Run 3 0 40 1-1242 1. 2515 1. 0879 10 1- 2855 1- 2515 1. 4265 20 3 - 0002 1.52 60 1.5686 10 2- 2884 3. 9447 3. 7227 PART B: Redo part A with a 500g mass added to the cart. This should almost double the total mass of the system. Original Data Part A: (5 points) Total Mass is constant. Mass of Trolley: 510 . 739 mass in mass on Time of run trolley string Total mass, (2) Is M =mi+ Is (seconds) +500g Run 1 Run 2 Run 3 40 1- 53 05 1- 5537 1 - 5450 10 30 1-7645 1 . 8215 1 - 8669 20 20 2-2870 2- 2827 12. 3099 30 10 3- 3140 3- 2198 13- 3677Slope = Mtotal 10 Error Mtotal - slope x 10.0 Attotal Part A A ( M/ s " ) stope B . = M total Mtotal - slopes to Error = X TOO M total Part B ( A) MLS 4 97.709 with picket = 5 10. 73 9CALCULATIONS (Clean and legible): (20 points) PART A: 1. Use the calculation table to complete the required calculations for Pant A 2. Plot a graph of unbalanced force (y-axis) versus acceleration (x-axis) 3. Determine the slope of the best fit line 4. Calculate the per cent error. %E = Total Mass - slope of graph -100% Total Mans Show sample calculations here.PART B: Use the calculation table to complete the required calculations for Part B Plot a second graph of unbalanced force (y-axis) versus acceleration (x-axis). Determine the slope of the best fit line Calculate the per cent error: %E = Total Mass - slope of graph 100% Total Mass Show sample calculations here.FINAL DATA (clean and legible): (10 points) Final data tables are provided at the end of the lab sheets. CONCLUSION (clean and legible): (10 points) Discuss the objective, procedure, and two sources of errors.\fPart A: mass of mass in string mass total unbalanced Time of run trolley trolley Acceleration ms mass, force (g) (g) (g) M (kg) a = 2d/12 FR (seconds) = ms (kg) x (m/s') gravity d=0.50 m (N) Run 1 Run 2 Run 3 Avg. O 40 10 30 20 20 30 10 Average Acceleration: Part B mass of mass in string mass total unbalanced Time of run Acceleration trolley trolley ms mass, force a = 2d/t (g) (g) g M (kg) FR (seconds) (m/s') = ms (kg) X d=0.50 m gravity (N) Run 1 Run 2 Run 3 Avg. 0 40 10 30 20 20 30 10 Average Acceleration