Potential Energy of Object After Earth Disappears

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SUMMARY

The discussion centers on the hypothetical scenario where Earth disappears suddenly, questioning the implications for the potential energy of an object thrown into the sky. It concludes that without Earth's gravitational pull, the potential energy (calculated as Mgh) of the object would indeed become zero. The conversation emphasizes that the disappearance of Earth violates conservation laws, raising critical questions about energy conservation in such a scenario.

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  • Understanding of gravitational potential energy (Mgh)
  • Basic principles of conservation of energy
  • Familiarity with physics concepts related to gravity
  • Knowledge of hypothetical scenarios in physics
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  • Research the implications of gravitational forces on potential energy
  • Explore the laws of conservation of energy in theoretical physics
  • Study hypothetical scenarios in physics, such as the effects of removing mass
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This discussion is beneficial for physics students, educators, and anyone interested in theoretical physics and the implications of conservation laws in extreme scenarios.

eminent_youtom
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earth disappear!

Suppose an object is thrown onto the sky from the surface of the earth. After it reaches certain height, Earth disappears without disturbing the surrounding or the atmosphere.
what happens to the potential energy of the object.
as there will be no any gravitational pull, eventually, potential energy of the object will be zero. However, my question is what happens to the potential energy (Mgh). how is the total energy going to conserve
 
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What happened to the earth? As soon as you vanished the Earth you violated conservation laws. Why do you expect conseveration laws to be valid for your test object?
 

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