Gravitation

The gravitational field in a region is given by \(\mathbf{E}=5 \mathrm{~N} / \mathrm{kg} \hat{\mathbf{i}}+12 \mathrm{~N} / \mathrm{kg} \hat{\mathbf{j}}\). The change in the gravitational potential energy of a particle of mass \(1 \mathrm{~kg}\) when it is taken from the origin to a point (\(5 \hat{\mathbf{i}}-5 \hat{\mathbf{j}}\)) is