How does Potential Energy converted into Kinetic Energy? ?

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SUMMARY

The discussion centers on the conversion of potential energy (PE) into kinetic energy (KE) as an object falls from a height (h) to the ground. It is established that when an object is at rest at height h, it possesses potential energy and no kinetic energy. As the object falls, its potential energy decreases while its kinetic energy increases, demonstrating the principle of conservation of energy, where PE + KE remains constant, assuming no energy loss due to air resistance.

PREREQUISITES
  • Understanding of potential energy and kinetic energy concepts
  • Basic knowledge of the conservation of energy principle
  • Familiarity with gravitational force effects on falling objects
  • Awareness of air resistance and its impact on energy conversion
NEXT STEPS
  • Study the mathematical formulation of potential energy (PE = mgh)
  • Explore kinetic energy calculations (KE = 0.5mv²)
  • Investigate the effects of air resistance on falling objects
  • Learn about energy conservation in different physical systems
USEFUL FOR

This discussion is beneficial for physics students, educators, and anyone interested in understanding the principles of energy conversion in mechanics.

Sampad Saha
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As we know that every object that has kinetic energy could also have potential energy. Now suppose an object is in rest at a distance of h meter from ground so it has some potential energy and no kinetic energy, now if it starts to fall towards the ground can we say that its total potential energy will be converted into kinetic energy?
 
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Sampad Saha said:
See,As a ball falls its Kinetic energy is increasing and its Potential energy is decreasing. so total potensial could be converted into total kinetic energy...
 
Sampad Saha said:
..suppose an object is in rest at a distance of h meter from ground so it has some potential energy and no kinetic energy, now if it starts to fall towards the ground can we say that its total potential energy will be converted into kinetic energy?

Yes (assuming no energy is lost to air resistance/drag).

Applying conservation of energy... PE + KE = Constant.
 

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