- #1
Saladsamurai
- 3,020
- 7
Homework Statement
So I am going over some old problem as review. I have the solution to this problem and something is bothering me about it.
Here is the problem and solution:
The statement says that the "bar is welded at A"... and hence it cannot rotate about A. Angular velocity [itex]\omega[/itex] that they are using is of the bar not the disk about its center.
Shouldn't the expression for the KE of disk use I about A ?EDIT:
I get this...the disk does not rotate, hence no KE (angular) ... but in the first version i think angular KE should be WRT point A
Here is the solution to the version where the disk is "pinned at A with a SMOOTH pin"...