Changes in momentum for interacting objects

Consider the scenario depicted below (note that figures represent two different perspectives of the same scenario, one is a view from above the table and another is from the perspective of an an observer watching the mass slides towards them), two blocks connected by a massless spring are on top of a frictionless, level table. The blocks are pulled apart slightly so that the spring is stretched, and while they are held apart they are given identical initial velocities in a direction perpendicular to the spring (the x-direction). The blocks are then released at the same time. Top view Side View N table UB; - VO X x >y m = 2.5m B m = 0 Table is m =2.5m ; m =0 Table is frictionless frictionless The mass of block A is two and a half times the mass of block B. The velocity vectors for blocks A and B are shown below for a time immediately before release. Draw a change-in-velocity vector for each block for a small time interval At after release. Your vectors need only be qualitatively correct (e.g., any vectors that have the same magnitude should be the same length, and a vector that has a greater magnitude should be longer). Use graph paper or the image below to construct your predictions. Briefly explain how mBUB compares with mA TA for this small time interval? Do this in two ways (1) use Newton's second law and the definition of acceleration to determine the directions of the change in velocity vectors, and (2) use Newton's third law to determine how the magnitude of the impulse on the two blocks compare. Construct momentum vectors and change in momentum rectors for the blocks. Also draw a final momentum vector for each block corresponding to the same mall time interval At. Your vectors need only be qualitatively correct (e.g., any vectors that have the same magnitude should be the same length, and a vector that has a greater magnitude should be longer). Use graph paper or the image below to construct your predictions