A basketball of mass 0.643 kg is passed to a player of mass 90.0 kg who jumps off the floor while catching the ball. The player's center of mass is instantaneously at rest just before he catches the ball, which is initially moving at a velocity of 10.5m/s, directed 30.0° below the horizontal. Find the horizontal component of the center of mass velocity of the system of player and ball just after the catch.