Convert ton-force (short) to poundal [pdl] Online | Free force Converter

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Ton-Force (Short)


The short ton-force is a unit of force based on the short ton, primarily used in the United States.



  • A short ton equals 2,000 pounds (lbs).



  • The short ton-force is the force exerted by one short ton mass under standard gravity.



  • Mathematically:



1 short ton-force=2,000 lbs×9.80665 m/s2≈8,896.44 newtons1 \text{ short ton-force} = 2,000 \text{ lbs} \times 9.80665 \text{ m/s}^2 \approx 8,896.44 \text{ newtons}

  • It is used in industries like engineering and construction where forces related to short tons are relevant.



  • Note: This differs from the metric ton-force (tf) and long ton-force used in other systems.



Poundal [pdl]


The poundal is a unit of force in the foot-pound-second (FPS) system, mainly used in the United States.



  • It is defined as the force required to accelerate a one-pound mass by one foot per second squared.



  • Mathematically:



1 pdl=1 lb×1 ft/s2=0.138255 newtons1 \text{ pdl} = 1 \text{ lb} \times 1 \text{ ft/s}^2 = 0.138255 \text{ newtons}

  • The poundal is smaller than the pound-force since Earth's gravity accelerates a pound mass at approximately 32.174 ft/s², making:



1 lbf=32.174 pdl1 \text{ lbf} = 32.174 \text{ pdl}

  • It is mostly of historical interest and rarely used in modern engineering but can appear in classical mechanics problems using the FPS system.



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