A ball is thrown up onto a roof, landing 4.15 s later at height h = 16.0 m above the release level. The ball's path just before landing is angled at 60.0° with the roof. (Let the positive x direction be to the right, and the positive y direction be upward.)
a) Find the horizontal distance d it travels.
b) What is the magnitude of the ball's initial velocity?
c) What is the angle (relative to the horizontal) of the ball's initial velocity?