Without opening his parachute, a skydiver reaches a fall velocity of When he does open the parachute, he's braked by additional air resistance. After a while, he finally arrives at the ground.
At what fall velocity does he reach the ground?
Details and Assumptions:
- The air frictional force depends only on the density of the air the cross-sectional area of the skydiver and the velocity Neglect the effect that the shape of the falling object has on the air frictional force.
- The cross-sectional area without the parachute is and that with the parachute is
- The density of the air is constant.