Two students are on a balcony 21.2 m above the street. One student throws a ball vertically downward at 15.2 m/s. At the same instant, the other student throws a ball vertically upward at the same speed. The second ball just misses the balcony on the way down. What is the magnitude of the velocity of the first ball as it strikes the ground?
The second ball?
How far apart are the balls 0.641 seconds after they are thrown.

Question

Two students are on a balcony 21.2 m above the street. One student throws a ball vertically downward at 15.2 m/s. At the same instant, the other student throws a ball vertically upward at the same speed. The second ball just misses the balcony on the way down. What is the magnitude of the velocity of the first ball as it strikes the ground?
The second ball?
How far apart are the balls 0.641 seconds after they are thrown.