Are Newton's three laws applicable everywhere?

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SUMMARY

Newton's three laws of motion are not universally applicable, particularly at high velocities approaching the speed of light and in extreme gravitational fields such as black holes. While they remain effective for everyday scenarios on Earth, their limitations become evident in advanced physics contexts, including quantum mechanics and relativistic speeds. Recent observations of the Pioneer spacecraft indicate an unexpected acceleration towards the sun that challenges both Newtonian and Einsteinian theories, highlighting the need for further investigation into these phenomena.

PREREQUISITES
  • Understanding of Newtonian mechanics
  • Familiarity with Einstein's theory of relativity
  • Basic knowledge of quantum mechanics
  • Awareness of gravitational effects near black holes
NEXT STEPS
  • Research the implications of Einstein's general relativity on Newtonian physics
  • Explore the concept of gravitational singularities and their effects on motion
  • Investigate the Pioneer anomaly and its significance in modern physics
  • Study the principles of quantum mechanics and their limitations compared to classical mechanics
USEFUL FOR

Students of physics, researchers in astrophysics, and anyone interested in the limitations of classical mechanics in modern scientific contexts.

blackwing1
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Are Newton's three laws applicable everywhere in the universe?
 
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Not really, but most places, especially here on Earth a low speeds and energies. but they are still very useful. They are not good at velocities at a high percent of lightspeed, c, nor near singularities where gravity is intense...like black hole interiors/centers...but then nothing else works very well there either. Considering he not only derived the laws but the differential and integral calculus for planetary oribits,etc,...a monumental achievemnt of the human mind...

Einstein's gravity ala Newton was expanded from just mass to energy and pressure which Newton did not know about...

Just now Pioneer Spacecraft are observed to be under an unanticipated acceleration, not understood, towards the sun, that varies from Newton and Einstein theories...if the preliminary data is in fact substantiated...
 
As our teacher tells us if they got us to the moon they are useful.

However in the quantam level and cases with very high speed they cannot be used.
 

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