Question

A ladybug falls into a small hill.It takes 8.6s for the ladybug to hit the bottom.How deep is the hole?

Answer 1

s=ut + 0.5*a*t^2

as u=0 initial velocity from rest
a = acceleration due to gravity

putting in the equation
s = 0.5*9.8* 8.6^2
= 362 m

Answer 2

S = ut + 1/2 at square
S = 0(8.6) + 1/2 * 9.8 * 8.6 square
S = 362.4m

Cheers!!