In 2005 Dr. Margo Lillie and her student Tracy Boechler published a study claiming that cow-tipping (the act of knocking a standing cow over by pushing on its side) cannot be performed by one person alone. You will perform the same analysis here. Assume that a typical cow (see figure) has a mass of 680 kg, with a center of mass located as shown. Also assume that you push the cow horizontally at the point indicated in the figure.
a) Draw a free-body diagram of the cow when a person is pushing it.
b) Calculate the magnitude of the minimum force the tipper would need to exert to tip the cow. Do you think it would be reasonable for a single person to exert this force?