Question

preciso saber qual a resposta da questão a gora

Answer 1

$h = \frac{g. {t}^{2} }{2}$
$125 = \frac{10. {t}^{2} }{2}$
$125 = 5 {t}^{2}$
${t}^{2} = \frac{125}{5}$
${t}^{2} = 25$
$t = \sqrt{25}$
$t = 5s$