Step-by-step explanation:
To find the net (total) force on the ball, we need to add the two forces together. Since the two players are kicking the ball from opposite sides, we need to subtract the force of the player kicking in the opposite direction.
Therefore, the net force on the ball is:
63 N (force of Blue #5) - 50 N (force of Red #3) = 13 N
The net force on the ball is 13 Newtons in the direction of Blue #5's kick.