Question

Define torque ???????????????

Answer 1

In simple words, torque is a twisting or turning force. That is, a force which tends to rotate an object about a fixed axis. Torque is a vector quantity and is denoted byτ.

It is given by cross product of position vector of point of application of force (with respect to axis) and the force responsible for the turning effect.

Examples: (1) When we apply force to the pedal of the cycle, we are actually applying a torque.

             (2) The rotor of the fan applies a torque to its leaves, and thus the leaves rotate.

Answer 2

Torque, moment, or moment of force is the rotational equivalent of linear force. The concept originated with the studies of Archimedes on the usage of levers. Just as a linear force is a push or a pull, a torque can be thought of as a twist to an object.