Problem 1. (15 pts) Determine the values 3 and wd of and for the following viscously damped systems, and decide the system is underdamped, critically damped or overdamped. a. m 10 kg, c = 150 N-s/m, k = 1000 N/m b. m = 10 kg, c = 200 N-s/m, k = 1000 N/m c. m = 10 kg, c = 250 N-s/m, k = 1000 N/m