- #1
tsw99
- 35
- 0
Homework Statement
this is not from a math course, but from Gregory's classical mechanics book prob 2.10
it's easy to obtain the desired ODE
[tex]\dot{r}^{2}=\frac{u^{2}}{a^{2}}(\frac{U^{2}a^{2}}{a^{2}}-r^{2})[/tex]
since it's non-linear, i have a difficult time to solve for r(t)
u, U and a are some constants with unit speed, speed and length resp.
Homework Equations
The Attempt at a Solution
all methods i know fail, I believe there is some trick that I am not aware of. great appreciate for any help:(