Physics

Problem

In a gravitational field (in SI unit) the gravitational potential is given by

V = -kx^2y

(J/kg). The gravitational field intensity at point (2, 1, 0) m is a.

4k\hat{i} + 4k\hat{j}

4k\hat{i} - 4k\hat{j}

-4k\hat{i} - 4k\hat{j}

-4k\hat{i}