Answer:
Explanation:
Force, F = - mg j
r = - 7x i + y j
Torque is defined as the product f force and the perpendicular distance.
It is also defined as the cross product of force vector and the displacement vector.
[tex]\overrightarrow{\tau }=\overrightarrow{r}\times \overrightarrow{F}[/tex]
[tex]\overrightarrow{\tau }=(- 7 x i + yj)\times (-mgj)[/tex]
[tex]\overrightarrow{\tau }= 7 m g x k
Here, we observe that the torque is independent of y coordinate.
