4. A gun’s bullet was launched horizontally with a speed 600m/s. It fell to the ground 300m away from the gun.

a. How long was the bullets flight?
b. At what height was the gun’s barrel at the moment of the shot?
5.

clearly the flight lasted 0.5 seconds.

So, how far did it fall in 0.5s?

s = 1/2 at^2