1. The problem statement, all variables and given/known data Two particles A and B, of masses 2m kg and m kg respectively, are connected by a light inextensible string which passes over a fixed smooth pulley. The system is released from rest, with both portions of the string vertical and taut, while A and B are at the same height. Find the magnitude of the acceleration of the particles and the tension in the string. The string breaks when the speed of each particle is u m/s. Find, in terms of u, the difference in height between the particles A and B, a. when the string breaks. b. when B reaches it s highest point, assuming that A has not reach the ground and B has not reached the pulley.