Final answer:
The maximum arresting force that a Personal Fall Arrest System (PFAS) should limit is not specified in the question, but safety standards typically limit it to around 1,800 pounds (8 kN) to prevent injuries. Understanding the force during a fall involves concepts of work and energy transfer in physics.
Step-by-step explanation:
The question pertains to the maximum arresting force that a Personal Fall Arrest System (PFAS) should limit during the stopping of a fall. In the context of physics, when discussing force and energy, we examine the conservation of mechanical energy during a fall and the work done by the stopping force.
For instance, if we calculate the force exerted on the knee joints of a 60.0-kg person jumping from a height of 3.00 m and landing stiffly, causing a 0.500 cm compression of the knees, we can apply concepts of work and energy to find the arresting force. A similar approach is used to determine the force exerted by safety equipment like airbags, seatbelts, or a PFAS. These systems are designed to minimize the impact on the body by converting the kinetic energy into work done by the force, without exceeding safe levels.
In the case of a PFAS, while the exact number is not provided in the question, industry standards generally require these systems to limit the maximum arresting force to well below injurious levels. For instance, occupational guidelines such as those from OSHA specify a limit that is generally around 1,800 pounds (8 kN) for adults. The exact requirements can vary based on regulations and equipment design.