1. The problem statement, all variables and given/known data Two particles A and B of mass 4kg and 3kg respectively are connected by a light inextensible string which passes over a small smooth pulley. The particles are released from rest with taut. When A has travelled a distance of 2m it strikes the ground and immediately comes to rest. Question: Assuming the B does hit the pulley find the greatest height that B reaches above its initial position. 2. Relevant equations Kinematic equations 3. The attempt at a solution I found out the the time it takes for the particle A to go down by 2m using this equation s=ut+0.5at^2. The time is 1.69 rounded to two decimal place so if Particle A go down by 1.69 second thant the Particle B will go up by 1.69 second. Now I know that for Particle B, U=0 A=-1.4 T=1.69 so using kinematics I can find the displace which will be -1.183m so the distance it goes by 1.183m. Which is a incorrect answer.