Velocity vs Time Acceleration vs Time Position vs Time 400 10 02 D.3 04 0,1 0.2 "" 0.4 0.7 200 500 -10 0 0.6 0.8 100 -20 -1000 - -30 position (cm) velocity (c/s) 0 1 0.2 0.3 0.6 =-509.89-834.29 -40 0.7 0.8 acceleration (cm* 2/s) -1500 - 50 - 200 -60 -300 -2000 -70 y= -485.61x- + 375.07x - 72.41 -400 y = -975x - 35038. .80 time (s) .500 -2500 time (s) time (s) Series1 aww...*. Poly. (Series1) a) According to the velocity graph, is the ball's acceleration constant or variable? Justify a) According to the acceleration graph, is the ball's acceleration constant or variable? Give the best experimental value of the ball's acceleration according to this graph. your answer. (3 points) Explain your answer. (3 points) Explain how you got it. (3 points) Answer here Answer here Answer here b) Give the best experimental value of the ball's acceleration according this graph. b) Give the best experimental value of the ball's acceleration according to this graph. Explain how you got it. (3 points) Explain how you got it. (3 points) 4. The expected acceleration for free fall, at the location where the experiment was filmed Answer here Answer here and in the absence of air resistance, is g = 9.81 m/s =981 cm/$2. How close are your experimental g-values to the expected value? Give a percentage difference. Give a 2. Plot Acceleration vs Time using the scattered mode. (4 points) plausible reason(s) for the difference. Human error is not an acceptable answer; if you 3. Plot Position vs Time using the scattered mode. (4 points) think your measurements were inaccurate, you should re-do them more carefully. (5 Insert your graph here (copy from Excel and poste here) points) Insert your graph here (copy from Excel and paste here) Enter calculations and answer here