How to find the angular velocity for this question?

[w31ha-]

Homework Statement

Finding angular velocity after impact

Homework Equations

Moment of inertia x angular velocity = constant

The Attempt at a Solution

Hi, I believe that angular momentum is conserved in this case?
If that's the case, how do I use the formula to calculate angular velocity if the intial angular velocity is already 0?

 

[PeroK]

If there is angular momentum after the impact but not before, then AM canot be conserved.

The bar is fallling at an angle of 60°. After it hits the ground, one end is anchored to the ground and the bar begins to rotate.

Generally, momentum is not conserved in a collision with the Earth, unless you include the Earth in your system.