<P> In physics , the center of mass of a distribution of mass in space is the unique point where the weighted relative position of the distributed mass sums to zero , or the point where if a force is applied it moves in the direction of the force without rotating . The distribution of mass is balanced around the center of mass and the average of the weighted position coordinates of the distributed mass defines its coordinates . Calculations in mechanics are often simplified when formulated with respect to the center of mass . It is a hypothetical point where entire mass of an object may be assumed to be concentrated to visualise its motion . In other words , the center of mass is the particle equivalent of a given object for application of Newton 's laws of motion . </P>
<P> In physics , the center of mass of a distribution of mass in space is the unique point where the weighted relative position of the distributed mass sums to zero , or the point where if a force is applied it moves in the direction of the force without rotating . The distribution of mass is balanced around the center of mass and the average of the weighted position coordinates of the distributed mass defines its coordinates . Calculations in mechanics are often simplified when formulated with respect to the center of mass . It is a hypothetical point where entire mass of an object may be assumed to be concentrated to visualise its motion . In other words , the center of mass is the particle equivalent of a given object for application of Newton 's laws of motion . </P>
where is the center of mass of an object
where is the center of mass of an object
the unique point where the weighted relative position of the distributed mass sums to zero
the unique point where the weighted relative position of the distributed mass sums to zero