- #1
TheDestroyer
- 402
- 1
Thanks for integral, he made the potential.pdf analyse for an analytical mechanic but i still have 2 questions,
1- Why does the length up between the tengency point and top of (h) equals:
[tex]\ell + r\theta[/tex] ?
2- Why the kinetic energy here equals:
[tex]T = \frac{1}{2} m(\ell + r\theta)^2 \dot{\theta}^2[/tex] ?
I mean why we replaced R with [tex]\ell + r\theta[/tex] in the polar coordinates?
Thanks,
TheDestroyer
1- Why does the length up between the tengency point and top of (h) equals:
[tex]\ell + r\theta[/tex] ?
2- Why the kinetic energy here equals:
[tex]T = \frac{1}{2} m(\ell + r\theta)^2 \dot{\theta}^2[/tex] ?
I mean why we replaced R with [tex]\ell + r\theta[/tex] in the polar coordinates?
Thanks,
TheDestroyer