Consider a pendulum, of length l and a bob of mass mat its end, moving through a lubricated oil with decreasing 0. The massive bob undergoes small oscillations, but the oil retards the bob's motion with a resistive force proportional to the speed with Fres (2m ) (16). The bob is initially is pulled back at t=0 with e e, and = , = 0. Find the || A. Forces acting on the bob B. angular displacement as a function of time, C. angular velocity as a function of time, D. mechanical energy, E. frequency of the damped motion, F. quality factor.