What Happens to the Remaining Support When One Is Removed From a Supported Rod?

[EndoBendo]

Homework Statement

A uniform thin rod of weight W = 100 N is supported horizontally by two vertical
props at its ends. At time t = 0 one of the these supports is kicked out. Find the
force on the other support immediately thereafter.

Homework Equations

F1 + F2 = mg

The Attempt at a Solution

-F1(L) + 100N(L) = 0
100N = F1

seems too simple.. i don't understand what i did, i just plugged it into a formula i found in the book...

 

[PeterO]

Homework Statement

A uniform thin rod of weight W = 100 N is supported horizontally by two vertical
props at its ends. At time t = 0 one of the these supports is kicked out. Find the
force on the other support immediately thereafter.

Homework Equations

F1 + F2 = mg

The Attempt at a Solution

-F1(L) + 100N(L) = 0
100N = F1

seems too simple.. i don't understand what i did, i just plugged it into a formula i found in the book...

Once one support is kicked out it is no longer a stable/stationary rod.