**Example:**The gravitational field in x direction due to some mass distribution is $E=x_{3}k $, where $k$ is a constant. Assuming the gravitational potential to be zero at infinity, then what will be its value at a distance $x$ ?

**Gravitational potential energy is given by the relation,**

Solution:

Solution:

$V=−∫E.dx$

$V=−∫(x_{3}k ).dx$

$V=2x_{2}k $