At the instant shown the collar at A on the 6-lb rod AB has a velocity of v_A= 8 ft/s. Determine the kinetic energy of the rod after the collar A has descended 3 ft. Each collar is attached to the rod using a ball-and-socket joint. Neglect friction, the thickness of the rod, and the mass of the collars. 

Transcribed Image Text:

VA = 8 ft/s X 3 ft A -6 ft- 7 ft B 2 ft