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(5) Below are the results of measurement on horizontal travel distance Ax in an angled launch experiment, in which the launch speed vo is fixed, the launch height is set to be h = 0, and the launch angle do is varied. 15 30 45 60 75 4x(m) 0.595+0.003 1.034 +0.007 1.151+0.009 1.011+0.001 0.577+0.007 Use EXCEL and the graphing skills you have learned from Lab 2 to find the best-fit line of 4x vs. sin(20). Record the slope, y-intercept, and R2 in Pre-lab. (If you do not have EXCEL, visit https://www.utdallas.edu/oit/office365/ . The university offers students license to Office 365 education service. If you do not have access to a computer, follow the steps of Pre-lab Question 2 of Lab 2 to do calculations.) ii. From the best-fit line, find the launch speed vo of this experiment (take g = 9.80 m/s2).(5) Analyze the best-fine line. (Express answers to 3 sig. figs.) i. Ax = x sin 20 + ; R2 = [6] ii. VO = m/s [2]