Whats the difference in ft lbs or lb ft? For years engine torque was defined as ft lbs. Seems now its in vogue to express the value in lb ft.
Me tooI've been known to flog a dead horse.
I understand.The use of lb-ft versus ft-lb is an attempt to distinguish between the two.
In "olden times" wasn't "energy" measured in foot pounds, as in the use of a pendulum of a known weight being struck by an object of a known weight and the distance the pendulum moved (measured in feet)? If memory serves, the first chronographs were like this, requiring lengthy calculations to reduce the "energy" to feet per second?
I mis-spoke, you can get KE from the initial speed of the pendulum.... but if you can't directly measure the speed (and if you could measure the speed of the pendulum, you could probably measure the speed of the bullet).... but if you measure the vertical climb of the pendulum, then you can calculate the speed.
And then calculate KE. I think that's how it goes. But not really measuring 'force' as far as I can tell.
It came to me in a dream." the definition of work (energy) is force times distance. The units should be lb-ft, although it is usually expressed as ft-lbs.
The definition of torque is lever arm (distance) times force. The units should be ft-lbs, although it is usually expressed as lb-ft. "
Didn't the Cheshire Cat say that in Alice in Wonderland?
They’re really not. Power (whether horse or otherwise) is the amount of work accomplished in a given amount of time. Torque has no time component, and in fact nothing has to be accomplished in order to have torque. IOW, power requires both that something be accomplished (movement) AND that it happen in some amount of time. Torque means neither.Torque and HP are two separate units of work measured in different ways.