Respuesta :

r03e

Answer:

[tex]t = \frac{4\pi {}^{2} l}{g} [/tex]

Step-by-step explanation:

[tex]l(4\pi ^{2} ) = gt \\ \frac{4\pi {}^{2} l}{g} = t \\ t = \frac{4\pi {}^{2} l}{g} [/tex]