Determine the depth of the gorge if the stone is freely falling without initial velocity. Reached its bottom in 5 seconds.

These tasks: free fall; t (the duration of the fall of the stone to the bottom of the gorge) = 5 s.
Reference values: g (acceleration of gravity, acceleration of the stone in question) ≈ 10 m / s2.
To determine the required depth of the gorge, we use the formula: S = H = g * t ^ 2/2.
Let’s perform the calculation: H = 10 * 5 ^ 2/2 = 125 m.
Answer: The desired depth of the gorge is 125 meters.