Momentum of an object in motion momentum p=mv mass velocity C. PROBLEM-1 The image shows Block B with a mass of 3 kg moving towards the left with a speed of 2 m/s. Block A has a mass of 1 kg and is moving to the right with a speed of 5 m/s. a. What is the momentum (p) of just Block A? b. What is the momentum (p) of just Block B? Kinetic energy stored in an object that is moving = 12 my = Kinetic Energy mass velocity Block A Block B VB If blocks A and B are part of one system being analyzed; what is the total momentum of the system?