A ball (0.2 kg) rolls along a level table at 1.5 m/s and then rolls off the edge. The table is 1.25 m off the floor. Consider the time from the moment just after the ball leaves the table till the moment just before the ball touches the floor. See figure. (Use g = 9.8 m/s2, and ignore any air resistance.)
What is the ball's initial horizontal velocity?