Final answer:
The drag coefficient of a skydiver in different positions during free fall can be determined using the equation for drag force. To calculate the drag coefficient, you need to know the values of the cross-sectional area and the drag coefficient for each position.
Step-by-step explanation:
The drag coefficient of a skydiver in different positions during free fall can be determined using the equation for drag force: FD = 0.5 * p * A * C * v2. Here, FD is the drag force, p is the air density, A is the cross-sectional area of the skydiver, C is the drag coefficient, and v is the velocity of the skydiver.
To calculate the drag coefficient in different positions, you need to know the values of A and C for each position. Once you have those values, you can substitute them into the equation and solve for the drag coefficient.
For example, if the skydiver is descending head first with a cross-sectional area of 0.18 m² and a drag coefficient of 0.70, you can plug these values into the equation to calculate the drag force and then solve for the drag coefficient.