It might seem insignificant to most, but when you try to do math without using the correct units one will get incorrect answers.Torque is a twisting force and is typically expressed in lbs-ft while work is typically expressed in ft-lbs (energy). Yeah I know that seems to be nit picky but it makes a difference when you practice unit cancellation in the mathematics on the subject material.
Regards,
HB2
Dissident