The gravitational field in a region is given by Eg = (4i + j ) N/kg . Work done by this field is zero when a particle is moved along the line. Choose the correct equation.

Q: The gravitational field in a region is given by Eg = (4i + j ) N/kg . Work done by this field is zero when a particle is moved along the line. Choose the correct equation.

(a) y + 2x = 2

(b) 4y + x = 6

(b) x + y = 5

(d) None of these

Ans: (a)