Recent content by Homgkung

I think I got what you mean! A non tangential force is not needed as the moment of inertia is zero. Thanks a lot!

Hi, I just come up with another picky case which may disagree with what you mentioned about the force from the pivot. suppose that there is a heavy bob pendulum linked with a massless rigid rod. From Newton's second law for rotation (must be correct). I can find the angular acceleration as Ӫ...

Yes I think I did miss it, thanks a lot

Thank you for your suggestion! Can you qualitatively prediction the variation of the reaction force on the pivot?

Summary: When I tried to find the angular frequency of a rod pendulum, I attempted to find its angular acceleration first, however, I realized that the results are different by using different approaches. i.e. (1) Newton's second law for a system of particles (2) Newton's second law for...

Hi all I currently studying physics in Naijing Unversity of China. I will be a year 2 student next year! Looking forward to the exciting discussion in physics!