# In a region of sphere, the gravitational potential is represented by V = 2x + 3y – z . Then gravitational field strength is

Q: In a region of sphere, the gravitational potential is represented by V = 2x + 3y – z . Then gravitational field strength is

(a) $2\hat{i} + 3\hat{j} – \hat{k}$

(b) $2\hat{i} – 3\hat{j} + \hat{k}$

(c) $-2\hat{i} – 3\hat{j} + \hat{k}$

(d) $-2\hat{i} – 3\hat{j} – \hat{k}$