Andrew finds a length of ideal rope with finite mass on the ground. He picks up one end by applying a constant force upward. Identify all of the following three statements that are true of this system: 1) Until he has lifted the entire rope off the ground, any given point on the rope has a constant velocity; 2) Until he has lifted the entire rope off the ground, any given point on the rope has a constant acceleration; 3) The total momentum of the rope increases as he pulls on the rope.