We all know work equals the negative change in potential energy where there is no change in kinetic energy, but can someone explain to me how this works in the following example?(adsbygoogle = window.adsbygoogle || []).push({});

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

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# Homework Help: Quick Q About W equally the negative change in potential energy

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