Question

a

Answer 1

part A
I think that we can apply this formula:
\[h = \frac{1}{2}g{t^2} = \frac{1}{2} \cdot 9.81 \cdot {2.2^2} = ...meters\]

Answer 2

Part B
we have to apply the formula of Torricelli:
\[v = \sqrt {2gh} \]

Answer 3

Thanks!

Answer 4

:)