For an experienced skydiver, it is 1:1, for a trainee and trainer it is 2:1.
a parachute
A skydiver loses speed when he opens the parachute because the parachute creates drag by slowing down the movement of air. This drag force opposes the motion of the skydiver, causing a decrease in speed. Additionally, the larger surface area of the parachute increases the effect of air resistance on the skydiver's body.
When a skydiver opens the parachute, he or she does not move upward, but rather, continues to move downward, but at a slower speed. Sometimes there is an illusion that the skydiver is moving upward, because if there are several people skydiving together, and one of them opens a parachute while the others don't, you will see the skydiver with the open parachute moving upward with relation to the other skydivers. But they are all still moving downward, they are just doing so at different speeds.
Yes, the slowing of a skydiver after the parachute opens is an example of inertia. Inertia is the tendency of an object to resist changes in its state of motion. When the parachute deploys, it creates drag that opposes the skydiver's downward motion, causing a rapid deceleration. The skydiver’s mass and the initial downward momentum illustrate inertia, as the parachute must exert a force to overcome this momentum.
When he or she wants the parachute to open
There are about 32,000 member of the United States Parachute Association. That's a close enough answer. Not every skydiver is a member.
-- The force of gravity is unchanged before and after.-- The force of air resistance on the skydiver is greater before, and less after,because she is falling slower after the parachute opens.-- The effect on her of air resistance is greater after the parachute is open. Theincreased air resistance itself acts on the parachute, and its effect is transferredto the skydiver through her harness.
the magnitude of the skydivers acceleration is zero as he is decelerating by opening his parachute!
A skydiver is not in freefall when they have opened their parachute. The move from free-fall to controlled decent under a wing.
You call someone who drops from an aircraft by parachute a skydiver.A skydiver, parachuter, or parachutist.
When a skydiver opens their parachute, air resistance increases which slows down the skydiver. Terminal velocity is the maximum speed a falling object can reach when the force of gravity is balanced by the force of air resistance. Opening the parachute decreases the skydiver's speed, allowing them to land safely.
A paratrooper? Either that or SkyDiver