When you jump out of an airplane and start falling downward, initially you will experience a net force of gravity acting on you, which will cause you to accelerate. As you continue to fall and gain speed, the force of wind resistance, also known as air resistance or drag, will start to oppose your motion.
At some point, the force of wind resistance will become equal in magnitude but opposite in direction to the force of gravity acting on you. This creates a state of dynamic equilibrium where the net force on you becomes zero, and your velocity becomes constant or "terminal velocity." At terminal velocity, the force of wind resistance balances out the force of gravity, resulting in a constant speed without further acceleration.
The magnitude of the force of wind resistance at terminal velocity depends on various factors such as your size, shape, and orientation to the airflow. Generally, the force of wind resistance (F) can be described by the equation:
F = 0.5 * ρ * A * Cd * v^2
Where:
- ρ is the density of the air,
- A is the effective cross-sectional area you present to the air,
- Cd is the drag coefficient that depends on your shape and orientation,
- v is your velocity.
The exact value of the force of wind resistance would require specific information about the factors mentioned above.