- #61
danielatha4
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"mv = d/dt (1/2 mv^2)"
Do you mean...
mv = d/dv (1/2 mv^2) ??
wouldn't d/dt (1/2 mv^2) = mv(dv/dt) ?
What is the difference between momentum and kinetic energy?
- Thread starter aloshi
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SUMMARY
The discussion clarifies the fundamental differences between momentum and kinetic energy. Momentum, defined as the product of mass and velocity (p = mv), is conserved in collisions, while kinetic energy, expressed as W = mv²/2, is not necessarily conserved. The conversation highlights that momentum is a vector quantity, possessing both magnitude and direction, whereas kinetic energy is a scalar quantity, having only magnitude. The participants emphasize the importance of understanding impulse as the change in momentum, which is distinct from energy considerations.
PREREQUISITES- Understanding of Newton's Second Law of Motion
- Familiarity with the concepts of impulse and momentum
- Basic knowledge of kinetic energy and its formula
- Ability to differentiate between scalar and vector quantities
- Study the work-energy theorem and its applications in physics
- Explore the conservation laws in physics, focusing on momentum and energy
- Learn about Compton scattering and its relation to momentum
- Investigate real-world examples of momentum transfer in collisions
Students of physics, educators explaining mechanics, and anyone interested in understanding the principles of momentum and kinetic energy in physical systems.
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