# Sliding Rod!

**Classical Mechanics**Level 5

Rigid uniform Rod is pulled slightly ( Gently ) at the bottom at time \(t=0\) .
Then Find the angle \(\theta \) from Horizontal as shown at which Rod will Loose it's
contact with Vertical **Smooth wall** .
If your answer can be expressed as :
\(\tan { \theta } \quad =\quad \cfrac { a\sqrt { b } }{ c } \).
Then Find \(a+b+c\)

**Details and assumptions**

\(\bullet\) All surfaces are perfectly smooth.

\(\bullet\) \(gcd(a,c)=1\)

\(\bullet\) \(b\) is square free integer and \(a , b , c\) all are integers.