\( T=r * f \)

Rotation is a special case of angular motionX. In the case of rotation, torque is defined concerning an axis such that vector “r” is constrained as perpendicular to the axis of rotation, and F is a force.

In other words, the plane of motion is perpendicular to the axis of rotation. The torque in rotation corresponds to force in translation.

Torque is the cross product of force cross length of the moment arm; it is involved whenever there is a rotating object. Torque can also be expressed in terms of the angular acceleration of the object.

The determination of torque’s direction is relatively easier than that of angular velocity. The reason for this is simple: the torque itself is equal to the vector product of two vectors, unlike angular velocity, which is one of the two operands of the vector product.

If we know the directions of two operands here, the direction of torque can easily be interpreted. Since torque depends on both the force and the distance from the axis of rotation, the SI units of torque are newton-meters.