- #1

Fusilli_Jerry89

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Say there is an object 100 metres away from the earth. We move this object to 2000 metres away from earth. Given that potential energy is 0 at infinity, potential energy change would be -GMm/2000 + Gmm/100 = 19GMm/2000. This is a positive number, yet the work would also be positive to move this object. How does this make sense?

Thx