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foot-pound |
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foot-pound, abbr. ft-lb, unit of work work, in physics and mechanics, transfer of energy by a force acting to displace a body. Work is equal to the product of the force and the distance through which it produces movement. ..... Click the link for more information. or energy energy, in physics, the ability or capacity to do work or to produce change. Forms of energy include heat , light , sound , electricity , and chemical energy. ..... Click the link for more information. in the customary English gravitational system; it is the work done or energy expended by a force of 1 pound acting through a distance of 1 foot. It is equal to 1.356 joules joule (j  l, joul), abbr...... Click the link for more information. . The term foot-pound is also used to designate a unit of torque torque, in physics, that which tends to change the rate of rotation of a body; also called the moment of force . The torque produced by rotating parts of an electric motor or internal-combustion engine is often used as a measure of its ability to do useful work. ..... Click the link for more information. that is sometimes called the pound-foot to distinguish it from the energy unit. A force of 1 pound applied 1 foot from and perpendicular to the direction to an axis of rotation produces a 1 foot-pound (or pound-foot) torque at the axis. |
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Rockbreaker systems mounted at a crusher can accommodate hammers ranging from the 750 foot-pound to 12,000 foot-pound class. Heaviest of the four standard breakers is the 71-pound LH 39, which delivers 110 foot-pounds of blow energy at an average impact rate of 1,275 blows per minute (bpm). |
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foot-pound
