kels90951 kels90951 14-02-2024 Physics contestada A ball weighing 9.8 N is tossed straight up at 20 m/s. Ignoring air resistance, when the ball is halfway up to its greatest height, the net force acting on it is ________. 1) zero 2) 9.8 N 3) 19.6 N 4) 39.2 N