Physics

Problem

The gravitational field in a region is given by

\vec{g} = 5\text{N/kg}\hat{i} + 12\text{N/kg}\hat{j}

. The change in the gravitational potential energy of a particle of mass 1 kg when it is taken from the origin to a point (7 m, -3 m) is: a. 71 J b.

13\sqrt{58}\text{J}

c. -71 J d. 1 J