A solid rod of mass M = 1.00 kg and length L = 85 cm is suspended by two strings, each with a length d = 83 cm (see Figure), one at each end of the rod. The string on side B is cut. What is the magnitude of the initial tangential acceleration of end B?

The string on side B is retied and now has only half the length of the string on side A. What now is the magnitude of the initial tangential acceleration of end B?