Position Vector Of Center Of Mass — the NEET Physics formula with its derivation, variables, validity constraints and worked solver.
Position Vector of Center of Mass Applies to systems of discrete particles or centers of mass of composite bodies. Define the moment of mass about the origin as the sum of individual mass-position products. Define total mass M as sum of individual masses. Divide total moment by total mass to find the position where the weighted sum of relative positions is zero. Masses must be constant. Positions must be measured from the same origin. Thinking the center of mass must lie physically inside one of the objects. Confusing center of mass with center of gravity (though they coincide in uniform fields). Assuming the center of mass is always at the geometric center (only true for uniform density).