Skydivers can increase drag by changing their body position to create more surface area exposed to the air, such as by spreading their limbs or arching their back. They can also deploy their parachute, which creates a large amount of drag as it catches the air. Additionally, wearing loose-fitting clothing or using additional drag devices like drogues can increase drag during freefall.
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Drag increases by the square of velocity increase, for example, tripling speed increases drag by a factor of nine!
You can increase drag by increasing the surface area of an object, changing its shape to be less streamlined, or by roughening its surface. Additionally, increasing the speed of an object can also increase drag.
You can increase drag by increasing the surface area exposed to the flow of air or water, or by changing the shape of the object to create more resistance. Adding rough textures or projections can also help increase drag.
In general (special exceptions may apply) increase speed = increase drag.
Skydivers can modify their body position to increase drag by spreading their arms and legs in a "flat" position, which creates more surface area and slows down their descent. They can also wear a jumpsuit with extra fabric or grippers on the arms and legs to further increase drag. Additionally, adding a drogue chute or deploying a larger main parachute can help increase drag and control their descent speed.