Rotational Motion of a slender rod

[zorro]

Homework Statement

A slender rod shown in the figure has a mass m and length l and is released from rest when theta=0 degrees. The horizontal and vertical components of force which the pin at A exerts on the rod at the instant shown in the figure is ?

The Attempt at a Solution

I have some basic problems with this question.
The pivot at A exerts a normal force along the rod. Is the magnitude of this normal force equal to that of the tension in the rod?

 

[ehild]

The force of the pin on the rod is equal to the tension in the rod at A, but the tension is not constant along the rod.

ehild

 

[zorro]

Ok, I drew this F.B.D. from what I understood:

In the problems of a mass attached to a string and rotated in a vertical circle, we have tension acting on the mass towards the centre.
But I don't find any force towards the pivot/pin which is responsible for the centripetal force.

 

[ashishsinghal]

Normal force will act in opposite direction. That along with component of Mg along the rod will give centripetal force.

 

[ehild]

But I don't find any force towards the pivot/pin which is responsible for the centripetal force.

The pivot can both pull and push the rod.

ehild

 

[zorro]

Thanks!