19.

At an instant when a soccer ball is in contact with the foot of the player kicking it, the horizontal or x component of the ball's acceleration is 920 m/s and the vertical or y component of its acceleration is 830 m/s?. The ball's mass is 0.39 kg. What is the magnitude of the net force acting on the soccer ball at this instant? Number i UnitsA billiard ball strikes and rebounds from the cushion of a pool table perpendicularly. The mass of the ball is 0.38 kg. The ball approaches the cushion with a velocity of +2.20 m/s and rebounds with a velocity of -1.70 m/s. The ball remains in contact with the cushion for a time of 3.50 x 103s. What is the average net force (magnitude and direction) exerted on the ball by the cushion? F = iTwo skaters, a man and a woman, are standing on ice. Neglect any friction between the skate blades and the ice. The mass of the man is 91 kg, and the mass of the woman is 60 kg. The woman pushes on the man with a force of 53 N due east. Determine the acceleration (magnitude and direction) of (a) the man and (b) the woman. (a) aman i (b) awom =