Answer:
Torque provides the relation between applies force and 'r'. 'r' is distance between point at which torque is measured to the point at which force applied. It is given as:
[tex]\tau=\hat{r}\times \hat{F}\\\\\tau=rFsin\,\theta[/tex]
It can be seen that if τ is kept constant then there is inverse relation between r and F, larger the r smaller will be force required to operate.
