Torque (T) is a rotational force that tends to cause an object to rotate about an axis. It is measured in units like Newton-meters (Nm) or foot-pounds (ft-lb), depending on the unit system.

Force (F) is the effort applied to an object to cause it to move or change its state of motion. It is typically measured in units like newtons (N) or pounds-force (lbf).

Distance (r), represents the lever arm or the perpendicular distance from the axis of rotation to the point where the force is applied. It is typically measured in meters (m) or feet (ft).

The formula for "Torque" is: T = F x r,

Where:

• T: torque,

• F: force, and

• r: distance or lever arm.

Therefore, the correct answer is “Tq = F x lever arm”.