Question

Why is GPE 0 infinity?

Answer 1

Answer:

At infinity, both the energies are zero. That is, the sum of potential and kinetic energies remain constant. When the object was on the Earth's surface, its g.p.e. was negative. When something lifted it off the surface to take it to infinity, it did work on the object, increasing its g.p.e. to 0.

Explanation: