Four balls are taken to the top of a building. ball 1 is dropped (zero initial velocity). ball 2 is thrown straight up with a velocity of 3 m/s. ball 3 is thrown straight out with a horizontal velocity of 3 m/s. ball 4 is thrown straight down with a velocity of 3 m/s. which ball hits the ground first?
The one which has the greatest initial DOWNWARD velocity which is ball 4