What forces act on a uniformly descending parachutist weighing 80 kg?
| September 2, 2021 | education
Given:
m = 80 kilograms – the weight of the parachutist;
g = 9.8 meters per second squared – acceleration due to gravity (constant near the surface of the earth).
It is required to determine what forces act on the parachutist and their significance.
Two forces act on the skydiver: gravity and air resistance.
The force of gravity will be equal to:
F gravity = m * g = 80 * 9.8 = 784 Newtons.
Since, according to the condition of the problem, the parachutist descends evenly, it means that both forces are equal, that is:
Fresistance = Fgravity = 784 Newtons.
Answer: 2 forces act: gravity and air resistance. Both are equal to 784 Newtons.
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