Recent Content by Nam Phương

$v^2=\omega ^2 \left(S_o^2-s^2\right)$ $\Rightarrow v^2 = \dfrac{g}{l}[\left(l.\alpha _o\right)^2-\left(l.\alpha\right)^2] $ $\Rightarrow \dfrac{v^2}{gl}= \alpha _o ^2 - \alpha ^2 $