Finding the initial velocity for a launched ball
Channel: Rhett Allain
Date: 2011-08-23

Here, I will shoot two balls straight up.  In one case, I will measure the max height in order to find the launch speed (initial velocity).  In the other case, I will measure the time it takes for the ball to come back down.  

I lied.  I am not actually going to measure these things - I am just going to show you how to calculate the initial velocity if you did measure them.