An apple fell from a height of 6.0 meters from a tree. How long did it take to fall to the ground.

An apple fell from a height of 6.0 meters from a tree. How long did it take to fall to the ground. Find out the speed while the apple is falling.

Given:
S = 6m
v₀ = 0m / s
g = 10m / s²
Find: v =?
Decision:
v = v₀ + gt
S = v₀t + gt² / 2, because. v₀ = 0m / s, then
S = gt² / 2
t² = 2S / g
t = √ (2S / g) = √ (2 6m / 10m / s²) ≈ 1.1 (s)
v = 0m / s + 10m / s² 1.1s = 0 + 11m / s = 11 (m / s)
Answer: 11m / s