Friday 18 January 2019

DIY parachute


Parachute

A parachute is a device used to slow down an object that is falling towards ground..parachutes are generally made out of light strong nylon.The word parachute comes from French words para and chute meaning " to shield a fall".

When a person is falling two forces act on him 1. Gravity (acting downwards) and 2. Air resistance(acting upwards) But here the gravitational pull is more than air resistance. So the person speedily falls on ground whereas with parachute, the air resistance increases due to larger surface area of the canopy of parachute. Hence, this slows down the parachute and the person can safely land on the ground.

Steps:




















FACTS
Larger the surface area, greater is the air resistance and slower the parachute falls.

Making a tiny hole in the center will aid in to fall straight down without oscillation.

If the weight is less the parachute doesn't work.
If the weight is more, the parachute comes down quickly.
Hence

Uses of parachute:
1. Paragliding
2. Military
3. Airplanes

Main parts of parachute:
1. Pilot chute: a small parachute that opens main parachute
2. Vent or apex: allows slow escape of air to pass from main parachute
3. Canopy: main part of parachute
4. Suspension lines: spreads the weight of parachutist evenly across the canopy
5. Risers:connects the links to harness

Working of real parachute:
There are three parachute in a container, main parachute, reserve parachute and pilot chute. Once you trigger pilot chute it opens up creating force that tugs out the main parachute. Reserve parachute is used if the main parachute fails to open.

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