1. The problem statement, all variables and given/known data In the pulley-cable system shown, the acceleration of block A, x(double dot), varies with time, t(in seconds), as given by the expression x(double dot) = 2t m/s2. initially the two blocks are 5m apart and both are stationary. http://img3.imageshack.us/img3/2074/pulleycable.jpg" [Broken] i)what is the acceleration, y(double dot), of block B at time t? ii)what is the velocity of block B when t = 3s? iii)how far apart are the blocks when t = 3s? 2. Relevant equations F= ma Length of rope = constant 3. The attempt at a solution F=maaa 2 T = ma2t T = mat F=mbab 3/2 T = mbab 3/2 mat = mbab ab = (3mat)/(2mb) is it correct for part (i)?