here is the link to stimulation: https://www.walter-fendt.de/html5/phen/looping_en.htm

If we plot Vt,min vs. r, we should see a linear relationship with a slope of g. This is your goal. You need to get a data set of Vt,min VS. r. You know that minimum tangential velocity is the one that corresponds with the contact force on the coaster of zero at the top of the loop. Use the simulation to gather data of the minimum tangential velocity in units of (m/s) for each radius from 0.3m to 0.8m in steps of 0.1m. Your first data table should have two columns one with minimum tangential velocity [m/s] and the other with loop radius [m]. Make use of the pause and slow motion (50 x) to gather this data. Use this data to make a new data table (a second data table) that has the same loops radius column [m] as well as a second column that is the square of the minimum tangential velocity [m'/s2 ]. Question 12: Upload a screenshot of your second data table with the squared velocity values. Plot the square of the minimum tangential velocity vs. the loop radius. Add a linear trendline and display the resulting equation from the fit on the plot. Question 13: Upload a screenshot of your plot WITH THE FIT RESULTS IN EQUATION FORM INCLUDED. Question 14: What is the slope from your trendline fit in units of m/s2? This is your measurement of g, if you are not getting a slope that is close to g, you should go back and look for errors in your data collection and or analysis. Input just the numeric value with no units. Question 15: What is the percent error between your value of the slope and the true value of the acceleration due to gravity, 9.81 m/s