Solve the all parts of given question:
Question: A ball is thrown toward a cliff of height h with a speed of 26m/s and an angle of 60 degree above horizontal. It lands on the edge of the cliff 3.0s later.
Part A: How high is the cliff?
Part B: What was the maximum height of the ball?
Part C: What is the ball's impact speed?
I need help to solve the above question and express your answer to two significant figures and include the appropriate units.