Written by Jerry Ratzlaff on . Posted in Classical Mechanics

torque bannerTorque (also called moment of force) is a rotational moment.  it is a measure of how much twisting is applied to a fastener. The units used to measure torque are in the form of force times length. Usually measured in newton-metres (Nm) if metric units are used or pounds feet (lb-ft) when imperial units are used.

Torque formula

\(\large{ T = l F }\)

\(\large{ T = d F }\)

\(\large{ T = I a_a }\)


\(\large{ a_a }\) = angular acceleration

\(\large{ d }\) = distance

\(\large{ F }\) = force

\(\large{ I }\) = moment of inertia

\(\large{ l }\) = length, moment arm

\(\large{ T }\) = torque

Solve for:

\(\large{ F = \frac {T}{l} }\)

\(\large{ F = \frac {T}{d} }\)

\(\large{ l = \frac {T}{F} }\)

\(\large{ d = \frac {T}{F} }\)


Tags: Equations for Force