- #1
Richardbryant
- 24
- 0
Homework Statement
Given circuit is a circle, force is a central force[/B]
Ueff(r)=U(r)+L^2/2mr^2
Homework Equations
the problem i find is, the angular momentum is a function of r
however, the solution when differentiate the effective potential, just treat angular momentum as a constant.
That's the point i am puzzle of, what is the physical sense of treating angular momentum as a constant? isn't it depends on the position r?