The gravitational field due to a mass distribution is in the x-direction

PHYSICS · Single correct · A Level · Physics · Fields and their consequences · Fields and their consequences

Problem

The gravitational field due to a mass distribution is E=Kx3E=\frac{K}{x^3} in the x-direction. (K is a constant). Taking the gravitational potential to be zero at infinity, then find gravitation potential at a distance x. (A) Kx\frac{K}{x} (B) K2x\frac{K}{2x} (C) Kx2\frac{K}{x^2} (D) K2x2\frac{K}{2x^2}

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