Since the ball is fired horizontally, the initial y velocity is zero and the time to hit the ground is the same as if the ball was simply dropped from the cliff. So you can solve the y position function:
giving a height of 44.1m.
The given final velocity vector tells us that the initial x-directed velocity was about 17m/s.
giving a height of 44.1m.
The given final velocity vector tells us that the initial x-directed velocity was about 17m/s.