Use the exact values you enter to make later calculations. A group of students, performing the same Uniformly Accelerated Motion experiment that you did in lab, dropped a picket fence through a photogate and obtained the following data from the computer. Blocking Times (s) 0.03581 0.06583 0.09230 0.11600 0.13786 0.15828 0.17716 The band spacing is 0.06 m. (a) Use Excel to do the following. (You will not submit this spreadsheet. However, the results will be needed later in this problem.) (i) Calculate the accelerations. (ii) Calculate the average of the accelerations. HINT (iii) Create a graph of velocity versus time. (iv) Use the trendline option to determine the slope. HINT (v) Report your results below. (b) What is the average acceleration? (Give your answer to four significant digits.) Bavg = 40 (c) What is the average acceleration a average as determined from the slope? (Give your answer to four significant digits.) Bavg = 40 (d) What is the percent difference between the values of the acceleration you obtained in (b) and (c) above? % A ball is thrown straight up with an initial speed v. The diagram below is a graph of the height versus time for the motion of the ball. B time (s) (a) What does the slope of the graph at location A indicate? O average velocity O instantaneous velocity O acceleration none of the above (b) What is the slope of the graph at location B compared to the slope at location A? O smaller greater the same (c) What is the slope of the graph at location C? O zero O indeterminate O a positive non-zero value a negative non-zero value (d) What is the velocity of the ball at location C? O zero indeterminate O a positive non-zero value O a negative non-zero value (૪) શ
