

MCQOPTIONS
Saved Bookmarks
1. |
A motor supplies a constant torque or twist of M = 120 lb ft to the drum. If the drum has a weight of 30 lb and a radius of gyration of k0 = 0.8ft, determine the speed of the 15-lb carte A after it rises s = 4 ft starting from rest. Neglect the weight of the cord. |
A. | v = 49.1 ft/s |
B. | v = 29.6 ft/s |
C. | v = 26.7 ft/s |
D. | v = 44.3 ft/s |
Answer» D. v = 44.3 ft/s | |