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A parachute works on the principle of 'air resistance'. To understand this principle, try two things. Drop a stone and drop a feather from a certain height. You will see that the stone plummets down instantly, while the feather kind of floats down. When an object falls through the air, it basically creates a path by pushing aside the atoms and molecules in the air. A stone, with its heavy mass, has no problem doing this and so drops to the ground quickly. But a feather, which has little mass and a larger surface area, finds it harder to shove aside the atoms and molecules and this interference slows down its downward fall. This is exactly how a parachute operates - getting the air molecules to slow down the fall and thus make it safer.
A parachute is packed in a deployment bag or D-bag. The D-bag is placed in a container which is secured by a closing pin. Packing a parachute correctly is very important - when deployed the parachute must unfold in a dependable and systematic way, without twisting or tangling the lines, and at an unhurried pace - if it opens too fast, the sudden decrease in speed can hurt the parachutist and there is also a chance of the equipment getting damaged. For this reason, specially trained and certified people are required to pack parachutes. And parachutes not often in use need to be unpacked and refolded regularly to keep them in good order.
BY ALBERT ALMARALBERT_ALMAR@Yahoo.COM
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How does a parachute and air resistance work?
When a parachutist jumps, the parachute deploys and opens up, creating a large surface area. This increases air resistance, which slows down the fall by creating a drag force that counters gravity. The parachute allows the parachutist to safely land at a slower speed than if they were falling freely.
How does the parachute helps an object to fall slowly?
A parachute works by increasing air resistance. When the parachute opens, it creates a large surface area that catches and slows down the air as the object falls. This increased air resistance reduces the speed at which the object falls, allowing it to descend more slowly and safely.
What is the name of the force that changes when the parachute opens?
The force that changes when the parachute opens is air resistance, also known as drag force. As the parachute opens, it increases the surface area exposed to the air, which increases the drag force acting on the parachute and slows down the descent of the object attached to the parachute.
A 500-N parachutist opens his chute and experiences an air resistance force of 800 N The net force on the parachutist is?
The net force on the parachutist is 300 N (800 N - 500 N = 300 N) in the opposite direction of the parachutist's downward motion. This net force contributes to the deceleration of the parachutist as they descend.
How long is the jumper in free fall if the parachute opens at 1000 ft?
Assuming the jumper free falls from an airplane at a typical altitude of 12,000 ft, it would take approximately 12 seconds to fall the first 1000 ft. If the parachute opens at 1000 ft, the jumper will then have a controlled descent for the remaining distance to the ground.
How does a parachute and air resistance work?
When a parachutist jumps, the parachute deploys and opens up, creating a large surface area. This increases air resistance, which slows down the fall by creating a drag force that counters gravity. The parachute allows the parachutist to safely land at a slower speed than if they were falling freely.
What force would change if a parachutist opens the parachute during the fall What will happen to the net force and acceleration over time after that?
When the parachutist opens the parachute, the air resistance force will increase. This will reduce the net force acting on the parachutist, causing a decrease in acceleration over time. As the parachute slows the descent, the net force continues to decrease until the parachutist reaches a terminal velocity.
Does a parachutist considered as a free falling object?
Yes, then not really, then definitely not: * Yes ... immediately after jumping. * Not really ... once terminal velocity is reached. * Definitely not ... after the parachute opens.
What will happen if a parachutist opens its parachute before reaching its terminal velocity?
During free fall, the parachutist reaches a terminal velocity (a constant velocity) of somewhere between 120 and 180 miles per hour. (If you go feet first, you go faster than if you lie on your back or front). When the parachute opens (hopefully), the terminal speed is reduced to around 12 miles/hour.
Ask us anythingA man steps out of a plane at a height of 4000 m above the ground falls 2000 m very quickly and then opens his parachute and slowly falls the remaining 2000 m to the ground. What height?
The man starts at a height of 4000 m and falls 2000 m quickly, which brings him down to 2000 m above the ground. After opening his parachute, he slowly descends the remaining 2000 m to the ground. Therefore, he ultimately lands at ground level, which is 0 m.
How does the parachute helps an object to fall slowly?
A parachute works by increasing air resistance. When the parachute opens, it creates a large surface area that catches and slows down the air as the object falls. This increased air resistance reduces the speed at which the object falls, allowing it to descend more slowly and safely.
How far above the ground is the sky diver when he opens his parachute A skydiver jumps from an airplane 1000.0 m above the ground He waits for 8.0 s and the opens his parachute?
1/2 g t2. 1/2 x 9.81m/s2 x 64 9.81 x 32 313.92m. 1000-313.92=686.08
What is the name of the force that changes when the parachute opens?
The force that changes when the parachute opens is air resistance, also known as drag force. As the parachute opens, it increases the surface area exposed to the air, which increases the drag force acting on the parachute and slows down the descent of the object attached to the parachute.
Why does a parachutist not accelerate as he falls?
You do, with a speed of 9.81m/s2 (Ignoring air resistance). When the parachute opens, the air resistance becomes very high, and so you decelerate to a certain speed (depending many different factors like air pressure and height.).
What is a ripcord?
A ripcord is the part of a parachute pulled when the jumper is in the air to deploy the parachute canopy. (i.e., It opens the parachute when pulled)
A 500-N parachutist opens his chute and experiences an air resistance force of 800 N The net force on the parachutist is?
The net force on the parachutist is 300 N (800 N - 500 N = 300 N) in the opposite direction of the parachutist's downward motion. This net force contributes to the deceleration of the parachutist as they descend.
What happens immediately after skydiver opens her parachute?
When her parachute opens, the air resistance increases. Now there is a resultant force going upwards on the parachute. The increase in air resistance occurs because when the parachute is opened there is a much larger surface area (than before) so the particles of air are much more likely to get 'caught up' in the parachute unable to pass easily, therefore creating more air resistance (an upwards force) and so slowing down the parachutist. NOTE: The parachutist does NOT move upwards after the parachute has opened, they just slow down. This effect comes from when a parachutist with a camera is filming opposite, they are still falling rapidly while the other person's parachute has opened, therefore passing them as they continue to freefall, and so the parachutist opposite appears to move upwards after opening the parachute.
