Two skaters a and b of equal masses are standing on ice, facing each other. skater a is holding a ball. then a throws the ball to b and b catches it. which of the following statements provides the most accurate description of the subsequent motion of the skaters? assume that the ice surface is frictionless. (a) both a and b will start moving away from each other (b) both a and b will not move in either direction (c) both a and b will start moving towards each other (d) only a will start moving away from b while b stays stationary