Angular velocity of rigid body

[zhenyazh]

hi,
i am trying to solve this question.

A thin stick of mass M = 4.9 kg and length L = 2.6 m is hinged at the top. A piece of clay, mass m = 1.0 kg and velocity V = 4.9 m/s hits the stick a distance x = 2.20 m from the hinge and sticks to it. What is the angular velocity of the stick immediately after the collision?

in order to find the v i used momentum conservation.
now my question are:
is the v i found the v of center of mass?
how do i find the w from here, that is what is my r and why?

thanks

 

[aim1732]

Guess you can answer this if you answered the one I asked?

 

[Redbelly98]

in order to find the v i used momentum conservation.
now my question are:
is the v i found the v of center of mass?

Hmm, I'm not sure to be honest. I would use angular momentum conservation instead.

 

[aim1732]

Yes, but only about the point where the force acts,the hinge that is.