The body falls from a height of 1450 meters, find the time of its fall.

Problem data: h (height from which the taken body began its fall) = 1450 m; we consider the fall free.

Reference values: g (acceleration due to gravity) = 9.81 m / s2.

The duration of the fall of the taken body can be expressed from the formula: S = h = g * t ^ 2/2, whence t = √ (2S / g).

Let’s calculate: t = √ (2 * 1450 / 9.81) = 17.2 s.

Answer: The taken body fell within 17.2 s.