Petanewton [PN]
Petanewton is a very large unit of force in the International System of Units (SI).
1 petanewton (PN) equals 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:
Petanewtons are mainly used in theoretical and high-scale physics contexts.
Pound Foot per Square Second [lbf·ft/s²]
This unit represents a torque or moment of force per unit time squared (though it’s an uncommon combination and can sometimes be context-specific).
It combines pound-force (lbf), a unit of force, with foot (ft), a unit of length, divided by second squared (s²), a unit of time squared.
It may be used in dynamics or rotational mechanics when dealing with angular accelerations or rate changes of torque.
In basic terms:
1 lbf\cdotpft/s2=force×distance÷time2
1 lbf\cdotpft/s2≈1.35582 N\cdotpm/s2
No conversions available for force.