Question #4:Compare the acceleration ay to your theoretical acceleration at. Calculate the percent error of your experiment with the theoretical value as the standard value. Your measured acceleration value ay should be less than the theoretical acceleration at. Analyze your experiment and discuss at least 3 systematic errors that contribute to the acceleration being less than expected (there are at least 6 reasons). Human error is not one of the experimental errors.Question #5:Make a graph of acceleration ay vs. the total mass of the system (m1+m2). How did the acceleration change as you increased the mass of the system? Is this what you expected? Explain why.Question #6:In excel, now graph acceleration (ay) vs. the inverse of the total mass (1/m1+m2). Acceleration is along the y-axis. Be sure data are in SI units (MKS). Your graph should look like a straight line. Ass a linear fit to your graph and display the equation on the chart. The linear fit equation is of the form: y=mx+b. What doses the slope m physically represent? Explain.