- #1
CNS92
- 8
- 0
Homework Statement
Why is the attachment true? (It's from my notes)
Homework Equations
General centre of mass equations
The Attempt at a Solution
Really not sure how the lecturer did this. It's quoted as if it's obvious but I don't see it at all, this has been annoying me for a while.
M(L-l) is obviously the moment of the ball about the center of masss.. I'm not sure where the other two terms come from really though.