How to Solve a Free Fall Problem (time of entire path)

This video shows how to solve a problem for how long an object takes to go up and down in free fall.

[us-Bahn]

Selection of the correct equation to use is nicely illustrated (avoiding DeltaY). Presenting 2 solutions helps us with the flexibility of approach. Polite requests: beginners should write out Velocity quantities with full units of measure to make sure their algebra gives a consistent result. Also prove to beginners why t1 & t2 are equal!