said by BonezX: said by cowboyro:
According to NIST it's officially defined as a unit of mass. What some people use it as has no bearing over the official definition.
might want to also look outside the united states of stuck in the past, if you did calculations in the scientific community, or about ~90% of the countries in the world in lb you would be laughed at.
The pound is the official unit for mass. Not force, mass.
The slug is a derived unit that makes the 1:1 translation between units of time, length and force so that F=m*a