An object is thrown vertically from a height of 2 m at 5m/s. How long will it take for the object to hit the ground?

$t = \left[u + \sqrt{{u}^{2} + 2 g h}\right] / g$
Consider 'g' acceleration due to gravity as $9.8 \frac{m}{s} ^ 2$
$\implies t = \left[5 + \sqrt{{\left(5\right)}^{2} + 2 \times 9.8 \times 2}\right] / 9.8$
$\therefore t = 1.32 \sec o n \mathrm{ds}$