A juggler performs in a room whose ceiling is 9 feet above the level of his hands he throws a ball vertically upward therefore that it just reaches the ceiling
1. Compute with what initial velocity does he throw the ball?
2. Find how many seconds are required for the ball to reach the ceiling?
He throws a second ball upward, with the identical initial velocity, at the instant the first ball touches the ceiling.
3. Find how long after the second ball is thrown does the two balls pass each other?
4. When the balls pass, Determine how far are they above the jugglers hands?