# Rotational dynamics regarding uniform rod

Is centripetal force present in rotating objects? I just solved a question in which an uniform rod rotates about a vertical axis with its one end pivoted. The angular acceleration is found by just equating the torque due to mass of the rod with I alpha. Why is centripetal force and torque due to it not considered when every circular motion has centripetal acceleration. If i have wrongly understood some concept pls correct me.

• What is a vertical point? – Alchimista Jan 15 '19 at 11:38
• I meant vertical axis.. Sorry it was a typo – Ruqa Jan 15 '19 at 18:25

Therefore the torque caused by it would be $$0$$ as torque is $$rF \sin \theta$$ and for this $$\theta = 0$$