Design and execute an experiment that demonstrates that the acceleration of a connected system of masses (the cart and any connected mass) is directly proportional to the system’s total mass. you will need to use the data generated by the experiment to produce a plot of the object’s acceleration versus its fnet, a vs. fnet, as well as an equation that best represents the data. the instructor may test your analysis by asking you to predict the acceleration of the object for a given system of masses.