Convert petanewton [PT] to poundal [pdl] Online | Free force Converter

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Petanewton [PN]


Petanewton is a very large unit of force in the International System of Units (SI).



  • 1 petanewton (PN) equals 101510^{15} newtons.



  • It represents forces much larger than those encountered in everyday life or typical engineering but smaller than exanewtons.



  • Such forces might be relevant in astrophysics, like the force between massive celestial bodies.



Mathematically:


1 PN=1015 N1 \text{ PN} = 10^{15} \text{ N}

Petanewtons are mainly used in theoretical and high-scale physics contexts.


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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