The gravitational field in a region is given by `vecE = (4hati +3hatj)`N/Kg. The gravitational potential at the points (3m, 0) and (0, 4m). If the potential at the origin is taken to be zero.

Explanation

`vecV=-(vecE.vecr)`
At (3m,0) `barV=-(4hati+3hatj).(3hati)`=-12J/kg
At (0,4 m) `vecV=-(4hati+3hatj).(4hatj)`=-12J/kg