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## How Do Skydivers Use Drag and Lift Forces?

Skydiving is an exhilarating sport that involves jumping out of an airplane and freefalling towards the ground. Skydivers use a variety of techniques to control their descent and land safely. Two of the most important forces that skydivers use are drag and lift.

### Drag

Drag is a force that opposes the motion of an object through a fluid. In the case of skydiving, the fluid is air. Drag is caused by the friction between the air molecules and the surface of the skydiver’s body and equipment.

The amount of drag that a skydiver experiences depends on a number of factors, including:

The speed of the skydiver: The faster the skydiver falls, the more drag they experience.
The surface area of the skydiver’s body and equipment: The larger the surface area, the more drag the skydiver experiences.
The shape of the skydiver’s body and equipment: A streamlined shape experiences less drag than a less streamlined shape.

Skydivers can use drag to control their descent. By increasing or decreasing their speed, they can increase or decrease the amount of drag they experience. This allows them to slow down or speed up their descent as needed.

### Lift

Lift is a force that opposes the weight of an object. In the case of skydiving, lift is created by the airflow over the skydiver’s body and equipment.

The amount of lift that a skydiver experiences depends on a number of factors, including:

The angle of attack: The angle of attack is the angle at which the skydiver’s body is tilted relative to the airflow. A greater angle of attack creates more lift.
The speed of the skydiver: The faster the skydiver falls, the more lift they experience.
The surface area of the skydiver’s body and equipment: A larger surface area creates more lift.
The shape of the skydiver’s body and equipment: A streamlined shape experiences less lift than a less streamlined shape.

Skydivers can use lift to control their descent. By increasing or decreasing their angle of attack, they can increase or decrease the amount of lift they experience. This allows them to slow down or speed up their descent as needed.

### How Skydivers Use Drag and Lift Forces

Skydivers use a combination of drag and lift forces to control their descent and land safely. They can increase or decrease their speed and altitude by adjusting their body position and equipment.

Here are some specific examples of how skydivers use drag and lift forces:

To slow down: Skydivers can increase their drag by increasing their surface area. They can do this by spreading their arms and legs or by deploying their parachute.
To speed up: Skydivers can decrease their drag by decreasing their surface area. They can do this by tucking their arms and legs or by closing their parachute.
To turn: Skydivers can use lift to turn by tilting their body in the desired direction.
To climb: Skydivers can use lift to climb by increasing their angle of attack. They can do this by leaning back and spreading their arms and legs.

### Conclusion

Drag and lift forces are essential for skydiving. Skydivers use these forces to control their descent and land safely. By understanding how drag and lift work, skydivers can improve their skills and safety.

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