an amateur tennis player hits a ball at 20 m/s, from a height of 2 m. the net at the center of the court is 11.9 meters away and 1 m high. a) if the ball is hit horizontally, will it hit the net, or go over it? show your work. b) if the ball is hit at an angle of 20 degrees up from the horizontal, will it hit the net, or go over it? show your work. answer: a) it will hit the net, b) it will go over the net (but you must prove it!)