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

The use of  dragon boats  for  racing  and  dragons  are believed by scholars, sinologists, and anthropologists to have  originated  in southern central china more than 2500 years ago, in dongting lake and along the banks of the chang jiang (now called the yangtze) during the same era when the games of ancient greece were.