Suppose you had an object on a surface with a string attached to the side of the object such that it can be pulled along the surface with a variable amount of force. (a) In a few sentences, outline how you could vary the applied force to determine the maximum static friction. On a force vs. time plot, sketch how this might look and indicate where you would find the maximum static friction value. (b) In a few sentences, outline how much force you would need to apply to determine the kinetic friction assuming the object was in motion. On a force vs. time plot, sketch how this might look and indicate where you would find the kinetic friction value.

Sketch a plot of what the model predicts for both static and kinetic friction on a friction force vs. normal force graph. Indicate how one would obtain the coefficients of friction. In a few sentences, explain how to create the friction force vs. normal force graph based on the force vs. time plots in the question