What is meant by moment of particles?

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    Moment Particles
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SUMMARY

The term "moment of particles" refers to the product of the lever arm and the mass of the particles, which is crucial in understanding rotational dynamics. The algebraic sum of moments about the center of mass must equal zero to ensure that there is no net torque acting on the system, maintaining equilibrium. This concept is foundational in physics, particularly in mechanics, where it is essential to analyze systems in static equilibrium. The discussion emphasizes that if both the sum of forces and the sum of moments are zero, the system remains in a state of rest or uniform motion.

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  • Understanding of basic physics concepts, particularly mechanics.
  • Familiarity with the center of mass and its significance in physics.
  • Knowledge of torque and its calculation in rotational systems.
  • Basic algebra skills for manipulating equations related to forces and moments.
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  • Study the principles of static equilibrium in physics.
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  • Explore the concept of center of mass in different geometrical shapes.
  • Investigate the relationship between forces and moments in dynamic systems.
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This discussion is beneficial for physics students, educators, and anyone interested in understanding the principles of mechanics, particularly in relation to forces and moments in physical systems.

Aatreya Sarma
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What is meant by moment of particles ? Why the algebraic sum of moments of all particles about centre of mass must be zero ?
 
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Can you give the context in which this term "moment" is used? And in what context is this "moment" zero about the center of mass? The "moment" of particles is not a standard physics term.
 
Moment refers to moment arm ... the lever arm times the mass.

See https://en.wikipedia.org/wiki/Moment_(physics )

If the sum of the forces is zero, and the sum of the moments is zero, then there will be no net force on the system.
 
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