question_answer

Is torque a scalar or vector? If it is a vector, what rule is used to determine its direction?

Answer:

                Torque is a vector quantity. \[\overset{\to }{\mathop{\tau }}\,=\overset{\to }{\mathop{r}}\,\times \overset{\to }{\mathop{F}}\,\].Its direction is determined by right handed screw rule or right hand thumb rule and is perpendicular to \[\overset{\to }{\mathop{r}}\,\] and \[\overset{\to }{\mathop{F}}\,\].