How to solve horizontally launched projectiles

This tutorial video is guaranteed to help you understand how to solve projectile problems on horizontally launched objects.
How to solve problems on projectiles launched at an angle:
• How to solve projectil...
• How to solve problems ...
Timestamps:
0:01 - Learning Target
0:08 - General Problem-Solving Steps for Projectile Motion
5:21 - Sample Problem #1 - Solving for the vertical and horizontal displacements
13:31 - Sample Problem #2 - Solving for the initial velocity and airtime
21:07 - Sample Problem #3 - Solving for the vertical displacement
28:32 - Sample Problem #4 - Solving for the horizontal displacement and final velocity (velocity before the object hits the ground)
Copy of the problems:
1) A diver running at 2.5 m/s dives out horizontally from the edge of a vertical cliff and 3.0 s later, she reaches the water below. How high was the cliff, and how far from its base did the diver hit the water?
2) A ball is thrown horizontally from the roof of the building 45 m tall and lands 24 m from the base. What was the ball’s initial speed and airtime?
3) A rock thrown horizontally at 22.2 m/s from the roof of a building lands 36 m from the base of the building. How tall is the building?
4) A motorcycle stunt rider moves horizontally on top of a cliff, and he leaves the edge of the cliff with a velocity of 10.0 m/s. How far is the motorcycle from the edge of the cliff after 1.0 second? What is the motorcycle’s velocity at that point?