Caida libre sin velocidad
encontrar el tiempo
t:
encontrar el tiempo
t:
mafrov
Se toma la raíz positiva, tiempo negativo carece de sentido en caída libre.
![\[\begin{gathered} h = \frac{1}{2}g{t^2} \hfill \\ t = \sqrt {\frac{{2h}}{g}} \hfill \\ t = \sqrt {\frac{{2\left( {2.5} \right)m}}{{9.8\frac{m}{{{s^2}}}}}} \hfill \\ t = \sqrt {\frac{5}{{9.8}}{s^2}} \hfill \\ t = 0.71s \hfill \\ \end{gathered} \] \\](https://tex.z-dn.net/?f=%5C%5B%5Cbegin%7Bgathered%7D%0A++h+%3D+%5Cfrac%7B1%7D%7B2%7Dg%7Bt%5E2%7D+%5Chfill+%5C%5C%0A++t+%3D+%5Csqrt+%7B%5Cfrac%7B%7B2h%7D%7D%7Bg%7D%7D++%5Chfill+%5C%5C%0A++t+%3D+%5Csqrt+%7B%5Cfrac%7B%7B2%5Cleft%28+%7B2.5%7D+%5Cright%29m%7D%7D%7B%7B9.8%5Cfrac%7Bm%7D%7B%7B%7Bs%5E2%7D%7D%7D%7D%7D%7D++%5Chfill+%5C%5C%0A++t+%3D+%5Csqrt+%7B%5Cfrac%7B5%7D%7B%7B9.8%7D%7D%7Bs%5E2%7D%7D++%5Chfill+%5C%5C%0A++t+%3D+0.71s+%5Chfill+%5C%5C+%0A%5Cend%7Bgathered%7D+%5C%5D+%5C%5C+ "\[\begin{gathered} h = \frac{1}{2}g{t^2} \hfill \\ t = \sqrt {\frac{{2h}}{g}} \hfill \\ t = \sqrt {\frac{{2\left( {2.5} \right)m}}{{9.8\frac{m}{{{s^2}}}}}} \hfill \\ t = \sqrt {\frac{5}{{9.8}}{s^2}} \hfill \\ t = 0.71s \hfill \\ \end{gathered} \] \\")
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