Part 2: The other thing that makes these concepts insanely difficult for most people is the confusion between mass and force. In the English System, we use lbs. for both. In the Metric System, no one knows what a Newton is and probably have not heard the term before.
Edit: And, yet another layer of the jacked-up-ness is that "foot-pound" (work) is not the same as "pound-foot" (torque) in the English system. And, this is expressed backwards on most torque gauges and inconsistent from how the metric system expresses torque (force-distance).
Edit: And, yet another layer of the jacked-up-ness is that "foot-pound" (work) is not the same as "pound-foot" (torque) in the English system. And, this is expressed backwards on most torque gauges and inconsistent from how the metric system expresses torque (force-distance).