An artillery shell is fired horizontally from the top of a cliff 78.0 m high. It leaves the gun with a velocity of 1150 m/s.
(a) How long does it take to reach the ground?
(b) How far from the base of the cliff does it land?
(c) Find the components of its velocity at the instant it strikes the ground.
vx = 3 m/s
vy = 4 m/s
(d) Find its speed at that instant.