posted by grace on .
Two students are on a balcony 29.4 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 29.4 m/s . The second ball just misses the balcony on the way down.
a) Sketch the velocity vs. time graph for both balls and paste your sketch in the space below.
b) What is the difference in the time the balls spend in the air?
c) What is the velocity of each ball as it strikes the ground?
d) How far apart are the balls 0.80 sec after they are thrown?