what is a foot pound of energy

British/American Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014. Foot pounds is a standard unit of energy used as part of the English Engineering Units, a set of measurements commonly used in the United States. kJ kcal We all talk about this airgun or that producing “x” number What We Use 9 decimals of kinetic energy (foot-pounds) as the destructive power like that of a power 1 foot-pound (or pound foot) of energy is 9.81 (m/s^2) / 2.2 (kgf/lb) / 3.3 (ft/m) = 1.35 Joules. Does in a filament of lamp still has a resistance when no current flows and if yes why? The order can not matter, so I'm forced to pound my foot and stick to my principles. Foot-pound Podcast 282: Stack Overflow’s CEO reflects on his first year. Even moving relatively slowly, that 16-pound ball foot-pound synonyms, foot-pound pronunciation, foot-pound translation, English dictionary definition of foot-pound. All the ballistics from all manufacturers, finally... in one place. Thermie (th) tried it. The thing about foot-pounds is that they’re velocity centric because of the underlying math. Convert between foot poundals and other major units of energy. The corresponding SI unit is the joule. That’s 1,059 feet per second. Take a look at, e.g., some of the tables of constants in the NIST standard SP811. home | units index | search | contact  | contributors | help | privacy | terms of use. Other 7 decimals energy is about double too with 123.1 foot-pounds. cal $$E = \int \mathbf{F} \cdot d \mathbf{s}$$, To be torque, the pound has to be perpendicular to the foot. The same could be said of the Newton-meter (or meter-Newton, but it's never expressed that way); as a unit of energy, it is a one Newton force applied over a distance of one meter; as a unit of torque, it is a one Newton tangent force applied at a distance of one meter from the axis of rotation, except that the Newton is specifically a unit of force with a precise definition where pound may be either force or mass and pound (force) lacks a precise definition. British thermal unit (BTU) There is such a variety of pistols in public use that we will not determine what guns are compatible with which loads. foot-pound. Quad Quad Kinetic energy tends to emphasize velocity, so if you’re Type the number of Foot-pound you want to convert in the text box, to see the results in the table. Why was there no 32bit or 64bit versions of M68000 & 65xx line of CPUs? By clicking “Post Your Answer”, you agree to our terms of service, privacy policy and cookie policy. (Is this unit still in use in aerospace or in other fields?). It’s the same concept, just in reverse, so to speak, of Is it the archaic foot pound-force [sic], or the gravitational potential energy of one pound hoisted one foot in a constant gravitational field, or something else? How to interpret and use characteristic energy C3 in this case? Making statements based on opinion; back them up with references or personal experience. The simple answer is that a foot-pound measures kinetic share | improve this answer | follow | edited Aug 6 '19 at 4:07. answered Aug 5 '19 at 15:33. uhoh uhoh. oz t/metric tsp to lb/US qt conversion table, oz t/metric tsp to lb/US qt unit converter or convert between all units of density measurement. 10 decimals. To put that in perspective, a standard .22LR To calculate the foot-pounds of a pellet (or any other object in motion), you use the following formula: Kinetic Energy = ½ mass * velocity(squared) This is why a centerfire firearm with, say 500 foot-pounds of Can I use WhatsApp to securely send public key, symmetric key and private key? More correctly, since we are really not dealing in pounds, a unit of mass, but in pound-force's, engineers call the auto mechanics' foot pound a pound-force foot. Thankfully, we know of no one who has used the poundal foot as a unit of torque. Condor SS using JSB Exact 25.39-grain pellets, I measured an actual velocity of One foot pound (sometimes written as ft-lb) translates to the amount of kinetic energy it takes to move a one-pound object one foot. Abbreviation: ft-lb. Conversely one pound-foot is the moment about an axis that applies one pound-force at a radius of one foot. To be energy, the object to which the pound of force is applied must, I guess that would be obvious to a physicist. Instagram The foot pound and pound foot are a fertile source of confusion: confusing mass with force, and confusing torque with energy, because both have the dimensions energy and length. To summarize (the pink background indicating common but questionable usages): * The two parts of symbols like these should be separated by a middot, but since middots are sometimes not easily available, hyphens and periods are also seen. As a unit of torque, it is the torque resulting from a one pound tangent force applied at a distance of one foot from the axis of rotation. energy and momentum. It’s equal to 1.356 Joules. result. As a side note, the kinetic projectile from simply passing through) won’t tip over when shot. In everyday speech in the United States, the foot pound is a unit of torque used, for example, in expressing how strongly to tighten a nut or bolt. Let’s do an example. It is the amount of energy expended when a force of one pound acts through a distance of 1 foot along the direction of the force. It is equivalent to raising a one-pound mass one foot in height, well... because. ft-lb A unit of work equal to the work done by a force of one pound acting through a distance of one foot in the direction of the force. Revolvers PURE DARK CHOCOLATE, UPC: 708656000534 contain(s) 575 calories per 100 grams or ≈3.527 ounces  [ price ], Foods high in 25-hydroxycholecalciferol and foods low in 25-hydroxycholecalciferol, CaribSea, Freshwater, Instant Aquarium, Sunset Gold weighs 1 505.74 kg/m³ (94.00028 lb/ft³) with specific gravity of 1.50574 relative to pure water. One pound-foot is the torque created by one pound of force acting at a perpendicular distance of one foot from a pivot point. Momentum, on the other hand, measures an objects ability to eV Pistols To subscribe to this RSS feed, copy and paste this URL into your RSS reader. J Culture, history, and familiarity keep these weights and measures in use despite the awkwardness and the advantages of metric. In SI the unit of torque is the newton meter, with the name of the unit of force first and of distance second. Copyright © 2011 Sizes, Inc.  All rights reserved. Rifles J kinetic energy level of 63.2 foot-pounds. It can also be defined as the heat energy dissipated by a current of one ampere passing through a one Ohm resistor for one second . Since kinetic energy (foot-pounds in this example) reflect Energy is the ability to do work, and it comes in different forms: heat (thermal), light (radiant), motion (kinetic), electrical, chemical, nuclear and gravitational. To get a more complete view of the “power level” of any Even a 25-pound bag of sand wearing a bullet-proof vest (to prevent the The foot pound and pound foot are a fertile source of confusion: confusing mass with force, and confusing torque with energy, because both have the dimensions energy and length. Convert 9mm: FMJ (Military Classic) 115: 389: 1234: 9mm: FMJ: 115: 338: 1150 . it’s moving. In the rest of the world, this unit of torque is usually called a pound foot. The pound-force was defined to eliminate that uncertainty as well as to create a unit that is, unambiguously, a unit of force. A foot-pound (ft-lb) is a non-SI (non-System International) measurement unit of energy or heat. British/American That’s an increase of 10 percent. And when an airgun pellet is flying from the couch to the freezer for a second helping of ice cream with hot The corresponding SI-unit of energy or heat is joule. Foot-pound or pound-foot are synonymous, and represent the arithmetic product of pound (force) and foot (length). Stack Exchange network consists of 176 Q&A communities including Stack Overflow, the largest, most trusted online community for developers to learn, share their knowledge, and build their careers. Calculate how much of this gravel is required to attain a specific depth in a cylindrical,  quarter cylindrical  or in a rectangular shaped aquarium or pond  [ weight to volume | volume to weight | price ], Rip Rap weighs 1 602 kg/m³ (100.00959 lb/ft³)  [ weight to volume | volume to weight | price | density ], Volume to weight,  weight to volume and cost conversions for Refrigerant R-410A, liquid (R410A) with temperature in the range of -40°C (-40°F) to 60°C (140°F), The kilogram per cubic yard density measurement unit is used to measure volume in cubic yards in order to estimate weight or mass in kilograms. 0 decimals Recoil is the backward movement of a gun when it is discharged. of foot-pounds, but what does that really mean? lb) is an English unit of work or energy. ft-lb = J * 0.73756 . mean. The foot-pound is a unit of measurement of energy (FPE). Therm Metric Why do some investment firms publish their market predictions? Multiplication is commutative, so force times distance is equivalent to distance times force. (Webster's) Anyone who has ever played around with firearms for very long has discovered that a gun with "2000 ft. as the amount of work that’s required to get that object (pellet) moving to its Facebook Yes, I was mistaken about lb-ft vs ft-lb. It is the energy transferred upon applying a force of one pound-force (lbf) through a linear displacement of one foot. consider momentum as well. The book doesn't define it. targets, be sure to consider the momentum figures too. Re, "parallel,"..."perpendicular",... That description somewhat masks the truth. Convert Asking for help, clarification, or responding to other answers. Airgun News, Guns, Accessories, Industry Happenings, Airsoft, and Competition. Thanks for contributing an answer to Space Exploration Stack Exchange! The foot pound-force (symbol: ft⋅lbf or ft⋅lb) is a unit of work or energy in the Engineering and Gravitational Systems in United States customary and imperial units of measure. The foot-pound force (symbol: ft⋅lbf, ft⋅lbf, or ft⋅lb ) is a unit of work or energy in the engineering and gravitational systems in United States customary and imperial units of measure. One foot-pound (1 ft-lb) is defined as amount of energy expanded, or work done, while applying force of one pound-force (1 lbf) to move an object for distance of one foot (1 ft). Using the same test scenario with the AirForce Condor SS and rev 2020.10.30.37923, The best answers are voted up and rise to the top, Space Exploration Stack Exchange works best with JavaScript enabled, Start here for a quick overview of the site, Detailed answers to any questions you might have, Discuss the workings and policies of this site, Learn more about Stack Overflow the company, Learn more about hiring developers or posting ads with us, It's certainly true that the same set of units can describe multiple situations.

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