a foot-pound-second unit of work or energy, equivalent to 2240 foot-pounds and equal to the energy expended in raising a ton of 2240 pounds a distance of one foot against the force of gravity.
Origin of foot-ton
First recorded in 1865–70
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
a unit of work or energy equal to 2240 foot-pounds
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012