Jul 21, 2014 #1 Aatreya Sarma Messages 2 Reaction score 0 What is meant by moment of particles ? Why the algebraic sum of moments of all particles about centre of mass must be zero ?
What is meant by moment of particles ? Why the algebraic sum of moments of all particles about centre of mass must be zero ?
Jul 21, 2014 #2 Matterwave Science Advisor Homework Helper Gold Member Messages 3,971 Reaction score 329 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.
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.
Jul 21, 2014 #3 UltrafastPED Science Advisor Gold Member Messages 1,910 Reaction score 216 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. Last edited by a moderator: May 6, 2017
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.