Ball 1 is launched with an initial vertical velocity v1 = 160 ft/sec. Three seconds late...

Ball 1 is launched with an initial vertical velocity v₁ = 160 ft/sec. Three seconds later, ball 2 is launched with an initial vertical velocity v₂. Determine v₂ if the balls are to collide at an altitude of 300 ft. At the instant of collision, is ball 1 ascending or descending?