Recent content by tzhu

Whoops, yeah that m was a typo :redface: But I know it's wrong because the book had answers at the back. (but it didn't have solutions) Here's what I did to get the "right" answer: Looking at the rotating reference frame of the rod, there is a centrifugal force and gravity. Their...

It's just a basic conical pendulum made from a rod. Here's my attempt at a picture...

I tried to do this pendulum problem with force analysis, but I kept getting a wrong answer. Eventually I figured it out using torque, but I still have no clue why I was getting a wrong answer when I try to use f=ma. Any help appreciated! Homework Statement A conical pendulum, a thin uniform...