Is the ball's height the same on Earth and Mars?

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SUMMARY

The discussion confirms that a ball dropped on Earth and Mars will reach the same height due to the law of conservation of energy, assuming no air resistance. The principle states that energy is conserved in a closed system, leading to the conclusion that the initial height of the ball will be the same on both planets. Mathematical proof is not necessary for this fundamental concept, as it simplifies to the equation x=x, demonstrating that all variables cancel out.

PREREQUISITES
  • Understanding of basic physics principles, particularly conservation of energy
  • Familiarity with ballistics and projectile motion
  • Knowledge of gravitational differences between Earth and Mars
  • Basic mathematical skills for manipulating equations
NEXT STEPS
  • Research the effects of air resistance on projectile motion on Earth and Mars
  • Study gravitational acceleration values for both Earth (9.81 m/s²) and Mars (3.71 m/s²)
  • Explore detailed mathematical proofs of the law of conservation of energy
  • Investigate the implications of conservation laws in different planetary environments
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Students of physics, educators teaching mechanics, and anyone interested in planetary science and comparative gravitational effects.

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Hi,
I understand that if a ball is dropped on Earth and dropped on mars, the ball will reach the same height on both planets thanks the law of conservation of energy. Can anyone prove this mathematically?
Thanks in advance
 
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Welcome to PF!

Conservation of energy is about as simple as physical laws get: x=x. How you prove it I guess depends on how detailed you want to be, but no matter what you do, everything in it cancels-out to x=x.
 

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