Child blows a leaf from rest straight up in the air. The leaf has a constant upward acceleration of magnitude 1.0\,\dfrac{\text m}{\text s^2}1.0 s
2

m

1, point, 0, start fraction, start text, m, end text, divided by, start text, s, end text, squared, end fraction.
How much time does it take the leaf to displace 1.0\,\text m1.0m1, point, 0, start text, m, end text upwards?