Retarding Forces • Sometimes the frictional force is a function of an objects velocity (such as air resistance) • These forces are called drag, or retarding, forces. The Skydiver • Assume we drop Alex from an airplane • Typically the drag forces on a free-falling object take the form F_drag=bv or F_drag=cv^2, where b and c are constants • For this problem, lets assume F_drag=bv Velocity as a Function of Time Acceleration as a Function of Time Graph of Acceleration, Velocity, and Displacement 2005 Free Response Question 1 2013 Free Response Question 2
