Question: A rocket is fired at a speed of 75.0 m/s from ground level, at an angle of 42.0 ° above the horizontal. The rocket is fired toward a 27.9-m high wall, which is located 39.0 m away. The rocket attains its launch speed in a negligibly short period of time, after which its engines shut down and the rocket coasts.
Part A: By how much does the rocket clear the top of the wall?
I don't just need an answer, work and explanations/walkthrough would be much appreciated! Thank you.