Final answer:
The maximum arresting force on an employee's body when using a positioning belt generally should not exceed 1,000 pounds, following health and safety regulations related to fall arrest systems.
Step-by-step explanation:
The question concerning the maximum arresting force on an employee's body when using a positioning belt pertains to occupational health and safety standards. Regulations require that the maximum arresting force of a fall arrest system, which can include a positioning belt, should not exceed 1,800 pounds (which is not one of the options provided), but as for a positioning device, it typically should not expose the worker to a force greater than 1,000 pounds. When considering the forces exerted during sudden stops in professional applications, like a seat belt in a car crash scenario, we can calculate the force using the change in momentum of the passenger, determined by the product of mass and velocity changes over time. This is similar to the concept of arresting forces during a fall, where the system must distribute and limit the forces on the worker's body to prevent injury.