Solve the all parts of given question:
Question: A ball is tossed from an upper-story window of a building. The ball is given an initial velocity of 7.70 m/s at an angle of 15.0° below the horizontal. It strikes the ground 6.00 s later.
Part A: How far horizontally from the base of the building does the ball strike the ground?
m
Part B: Find the height from which the ball was thrown.
m
Part C: How long does it take the ball to reach a point 10.0 m below the level of launching?
s
Please do a step by step solution since I'm kind of lost with this question.