A ball is kicked from the origin with an initial speed of 10 = 25.0 /, at an angle with
the horizontal. At the same time, a second ball is thrown vertically upward from the ground at
point P, at = 40.0 m with an initial speed of v20 = 15.0 m/s as shown in the figure below.
Assume that both balls are shot at time t = 0
a) If the two balls are to hit each other, what must θ be? [4 points]
b) At what time the two balls will hit each other?
