Poundal foot vs Foot poundal
English translation: poundal foot = a unit of torque and a vector measurement
| 10:41 Aug 18, 2019 |
| English language (monolingual) [PRO] Science - Transport / Transportation / Shipping / Units of measure | |||||||
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|  Selected response from: Helena Chavarria Spain Local time: 12:52 | ||||||
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| SUMMARY OF ALL EXPLANATIONS PROVIDED | ||||
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| 3 | poundal foot = a unit of torque and a vector measurement |
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| 3 -1 | poundal |
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| Discussion entries: 1 | |
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Answers
51 mins confidence: 
peer agreement (net): -1
peer agreement (net): -1| poundal foot vs foot poundal poundal Explanation: I think you do not need foot with poundal. It is part of the Foot–pound–second system and, as such, the fact that it involes a foot is already implied: https://en.wikipedia.org/wiki/Foot–pound–second_system "The foot–pound–second system or FPS system is a system of units built on three fundamental units: the foot for length, the (avoirdupois) pound for either mass or force (see below), and the second for time." and https://en.wikipedia.org/wiki/Poundal "The poundal is defined as the force necessary to accelerate 1 pound-mass at 1 foot per second per second. 1 pdl = 0.138254954376 N exactly." |
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4 hrs confidence:
| poundal foot vs foot poundal poundal foot = a unit of torque and a vector measurement Explanation: The foot-poundal (symbol: ft-pdl) is a unit of energy that is part of the foot-pound-second system of units, in Imperial units introduced in 1879, and is from the specialized subsystem of English Absolut[1] (a coherent system). The foot-poundal is equal to 1/32.174049 that of the more commonly used foot-pound force. https://en.wikipedia.org/wiki/Foot-poundal One poundal foot converted into foot pound equals = 0.031 ft lb 1 pdl ft = 0.031 ft lb http://convert-to.com/conversion/energy/convert-pdl-ft-to-ft... Are They Interchangeable? The short answer is no. They are each separate, distinct units of measure. However, as it turns out foot-pound and pound-foot can be converted between one another via complicated math, even though they measure two different things. First, we need to define what each unit is, and what it measures. The “pound-foot” (lb-ft) is a unit of torque and a vector measurement that is created by one pound of force acting on a one foot lever. The formula for torque in the instance of tightening a fastener would be: Torque equals force times radius, or T=FR. When tightening a bolt, “R” would be the length of your wrench. The “foot-pound” (or more accurately, “foot-pound-force”), on the other hand, is a measurement of work. Work is the measurement of force over a given distance. So one foot-pound-force (ft-lbf or just ft-lb) is the energy required to move a one pound object one foot of linear distance. So while both measurements have a force component (pounds) and what is called a displacement component (feet), one is a scalar and one is a vector – which is a fancy way of saying they measure different things. https://www.enginelabs.com/news/torque-talk-pound-feet-foot-... -------------------------------------------------- Note added at 6 hrs (2019-08-18 16:57:52 GMT) -------------------------------------------------- A pound-foot (lbf⋅ft) is a unit of torque (a pseudovector). One pound-foot is the torque created by one pound of force acting at a perpendicular distance of one foot from a pivot point.[2] Conversely one pound-foot is the moment about an axis that applies one pound-force at a radius of one foot. The value in SI units is given by multiplying the following approximate factors: One pound (force) = 4.448 222 newtons[3][4] One foot = 0.3048 m[5] This gives the conversion factor: One pound-foot = 1.35582 newton metres. The name "pound-foot", intended to minimize confusion with the foot-pound as a unit of work, was apparently first proposed by British physicist Arthur Mason Worthington.[6] However, the torque unit is often still referred to as the foot-pound (ft⋅lbf). https://en.wikipedia.org/wiki/Pound-foot_(torque) The foot-pound (also and originally known as foot-pound force) is a traditional English unit of work. It is equal to the work done by one pound of force acting through a distance of one foot. For example, when James Watt determined that a horse could lift 550 lbs. at a rate of one foot per second, he declared it one horsepower. The SI or international equivalent of the foot-pound is the Joule (J). The pound-foot (also and originally known as pound-force foot) is a traditional English unit of torque. The angular equivalent of linear force, torque is the tendency of a force to produce a rotation. Torque is the product of the force and the distance from the center of rotation to the point where the force is applied. For example, if a one-pound force is exerted on a wrench with an effective length of one foot, one pound-foot of torque is applied to the fastener. The SI or international equivalent of the pound-foot is, naturally enough, the Newton meter (Nm). https://macsmotorcitygarage.com/foot-pounds-and-pound-feet-w... |
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