- #1
Chenkel
- 482
- 108
- TL;DR Summary
- I'm wondering about this approach, and also the motivation for the definition of angular momentum.
Hello everyone!
I was wondering why can't we take a rotating body and see the linear movement that each particle moves to find the 'total linear momentum,' I imagine this quantity would be conserved, and furthermore couldn't you write the total linear momentum as a function of angular velocity? i.e, $$p = \int \dot \theta r dm = \dot \theta \int r dm$$If this is true then what is the motivation for the definition of angular momentum?
I was wondering why can't we take a rotating body and see the linear movement that each particle moves to find the 'total linear momentum,' I imagine this quantity would be conserved, and furthermore couldn't you write the total linear momentum as a function of angular velocity? i.e, $$p = \int \dot \theta r dm = \dot \theta \int r dm$$If this is true then what is the motivation for the definition of angular momentum?