Question

A body is thrown up and attains a maximum height of 19.6m.Its initial speed was

Answer 1

${v}^{2} = {u}^{2} + 2as$
v=0
u=?
a=-9.8m/s^2
s=19.6

0=u^2 – 2×9.8×19.6
u^2 = 19.6×19.6
u=19.6 m/s

$hope \: the \: answer \: helps$