Solve the all parts of given question:
Question: A projectile is thrown down from the edge of a cliff with an initial speed of 30.0 m/s at an angle of 25.0 degree below horizontal.
Part A: If the projectile takes 4.50 seconds to reach the ground, how high is the cliff?
Part B: Determine the range of X of the projectile, as measured from the base of the cliff.
Part C: Find the horizontal and vertical components of the velocity when the projectile strikes the ground.
So confused, please explain how you got the answers. Thanks.