A man stands on the roof of a 15m tall building and throws a rock with a velocity of magnitude 30.0 m/s at an angle of 33.0 degrees above the...

A man stands on the roof of a 15m tall building and throws a rock with a velocity of magnitude 30.0 m/s at an angle of 33.0 degrees above the horizontal. You can ignore air resistance. Calculate the maximum height above the roof reached by the rock, the magnitude of the velocity of the rock just before it strikes the ground, and the horizontal distance from the base of the building to the point where the rock strikes the ground.