The body freely falls to the Earth from a height of 25 m. What is its velocity when it hits the Earth?

The body freely falls to the Earth from a height of 25 m. What is its velocity when it hits the Earth? Make the same calculation for the Moon.

h = 25 m
gz = 9.8 m / s ^ 2
gl = 1.62 m / s ^ 2
V0 = 0
Vz-?
Vl-?
The acceleration of free fall on the Earth is gz = 9.8 m / s ^ 2, the acceleration of free fall on the Moon is gl = 1.62 m / s ^ 2. On the surface of the Earth, the gravitational force of the Earth acts on a body that freely falls; on the surface of the Moon, the gravitational force of the Moon acts on a body that freely falls. Acceleration on Earth is determined by the formula gz = (Vz ^ 2-V0 ^ 2) / 2 * h, since V0 = 0, the formula will have the form gz = Vz ^ 2/2 * h, we express the speed Vz ^ 2 = gz * 2 * h, Vz = square root of gz * 2 * h, Vz = square root of 9.8m / s ^ 2 * 2 * 25m = 22.1 m / s. For the surface of the Moon, the formula will have the form Vl = square root of gl * 2 * h, Vl = square root of 1.62m / s ^ 2 * 2 * 25m = 9 m / s.
Answer: Vz = 22.1 m / s, Vl = 9 m / s.



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