Compute all parts of given question:
Question: You throw a snowball horizontally from the roof of a building that is 56.0 m above flat ground. The initial speed of the snowball is 11.0 m/s. Assume free fall with up as positive, and use g = 9.80 m/s2.
Part A: How long does the projectile remain in the air?
Part B: At what horizontal distance from the firing point does it strike the ground?
Part C: What is the vertical component of its velocity as it strikes the ground?
Part D: What is the direction of the ball's velocity (from the x-axis) just before it hits the ground?
I want help to determine the vertical component of its velocity as it strikes the ground.