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Energy extraction during uniform lowering of a body into a black hole

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Abstract

We construct a rigid reference frame accompanying a rope that is being lowered uniformly into a black hole with arbitrary velocity. We calculate the work done at the initial point in the case of lowering a load on a weightless rope and in the case of lowering a homogeneous massive rope. In both cases the work turns out to equal the rest energy of the lowered body.

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Additional information

Translated from Izvestiya Vysshikh Uchebnykh Zavedenii, Fizika, No. 2, pp. 32–36, February, 1989.

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Khrapko, R.I., Mironnikov, A.S. Energy extraction during uniform lowering of a body into a black hole. Soviet Physics Journal 32, 102–105 (1989). https://doi.org/10.1007/BF00898668

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Keywords

  • Black Hole
  • Reference Frame
  • Initial Point
  • Lowered Body
  • Energy Extraction