The Principles Of Parachuting

A falling parachute is subject to two influences:
Gravity (land attraction)
The resistance of the air

Basically, we can assume that the influence of gravity depends only on the mass of the parachute and its equipment. We will ignore the variation of the earth’s attraction as a function of altitude.
The resistance of the air is more complex to describe; It depends on many factors, and the resultant of its action is not always the same.

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