# You asked: Why do skydivers use parachutes to land safely?

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## Why is it necessary for skydivers to use parachutes?

The importance of cross-sectional area to skydiving is also demonstrated by the use of a parachute. An open parachute increases the cross-sectional area of the falling skydiver and thus increases the amount of air resistance which he encounters (as observed in the animation below).

## How does a parachute help a skydiver make a safe landing?

Your parachute allows you to descend more slowly because it lowers terminal velocity by increasing your air resistance. Most parachutes are designed to create a large amount of drag and allow you to land at a safe, low speed.

## How long does a skydive last?

While your freefall time will vary, you can expect to fall for this long depending on your exit altitude: 9,000 ft: approximately 30 seconds in freefall. 14,000 ft: approximately 60 seconds in freefall. 18,000 ft: approximately 90 seconds in freefall.

## How much does a parachute slow you down?

Parachutes are designed to reduce your terminal velocity by about 90 percent so you hit the ground at a relatively low speed of maybe 5–6 meters per second (roughly 20 km/h or 12 mph)—ideally, so you can land on your feet and walk away unharmed.

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## What force slows down a skydiver?

Air resistance is the frictional force acting on an object (the skydiver) and the air around them. Frictional forces always oppose motion (1). This means that friction always pushes in the opposite direction than the skydiver is travelling, therefore slowing the skydiver down.

## What is the best parachute shape?

The circle parachute should demonstrate the slowest average descent rate because its natural symmetrical shape would be the most efficient design to maximize wind resistance and create drag.

## Why do larger parachutes fall slower?

How large a parachute is (in other words, the parachute’s surface area) affects its air resistance, or drag force. The larger the parachute, the greater the drag force. In the case of these parachutes, the drag force is opposite to the force of gravity, so the drag force slows the parachutes down as they fall.

## Is skydiving worth the risk?

Skydiving isn’t without risk, but is much safer than you might expect. According to statistics by the United States Parachute Association, in 2018 there were a total of 13 skydiving-related fatalities out of approximately 3.3 million jumps!

## Who has died from skydiving?

While skydiving accidents are rare, there have been some notable incidents in the past year. In May, Carl Daugherty, a renowned skydiver who had jumped around 20,000 times before, died during a freak mid-air collision with another person in DeLand Florida.

## How many times can you skydive in a day?

When you consider that each jump takes quite a bit of energy out of you, you probably don’t want to be doing too many more than 4 jumps per day. On the basis that you’ll need to complete a minimum of 18 jumps (depending on the system you use to learn), you can work out how many days you’ll need as a minimum.

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