Calculating the Average Force of Air Resistance on a Stunt Man
What was the average force of air resistance exerted on the stunt man during his fall?
The average drag force on the stuntman during a fall is 305.29 N. Force is a push or a pull. To calculate the average force of air resistance exerted on the stunt man during his fall, we need to begin by collecting the kinetic energy of the stuntman. The parameters provided are as follows:
- Mass (m): 82 kg
- Velocity (v): 22 m/s
- KE = 0.5 * m * v^2
- KE = 0.5 * 82 * 22^2
- KE = 19844 J
- Work (W) = Force (F) * Displacement (d)
- 19844 = F * 65
- Divide both sides by 65: F = 19844 / 65
- Therefore, the average force of air resistance exerted on the stunt man during his fall is 305.29 N
Understanding the Calculation Process
To calculate the average force of air resistance on the stunt man, we first determine the kinetic energy of the stuntman using the provided mass and velocity. Kinetic energy is the energy possessed by an object due to its motion. The formula for kinetic energy is as follows:- Kinetic Energy (KE) = 0.5 * mass * velocity^2
- Work (W) = Force (F) * Displacement (d)
- 19844 = F * 65
- F = 19844 / 65
- F = 305.29 N