The stone falls freely from the tower for 3 seconds. Find the height of the tower. Disregard air resistance.

These tasks: t (duration of free fall of a stone taken from the tower) = 3 s; air resistance is not taken into account.

Reference values: g (acceleration of gravity of a stone taken) = 9.81 m / s2.

The desired height of the tower (the distance traveled by the taken stone) can be calculated by the formula: H = g * t ^ 2/2.

Let’s make a calculation: H = 9.81 * 3 ^ 2/2 = 44.145 m.

Answer: The required tower height is 44.145 m.