. Two students are on a balcony 19.6 m above the
street. One student throws a ball vertically downward at 14.7 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.
a. What is the difference in the time the balls
spend in the air?
b. What is the velocity of each ball as it strikes
the ground?
c. How far apart are the balls 0.800 s after they
are thrown?