'Centre of mass' is a place, i.e. a point, in space. It can be described by its
coordinates . . . lengths (x, y, z) in Cartesian coordinates, or some combination
of lengths and angles in other coordinate systems.
The dimension of mass is always [M].
The center of a volume of mass, is its' center of gravity.As the universe is the greatest volume possible, and contains all mass, and gravity originates from mass. If the volume of the universe is "unbound" the center of gravity, for the mass of the universe would be everywhere.As all gravity in the universe, can originate from, only, the mass in the universe, and the whole must equal the sum of its parts.The gravity of the universe is only shown through the diameters of the volumes of masses, within it, as a center of gravity.The mass of the universe as seen through a diameter of a volume of mass, as gravity.Theoretically, in geometry,1 point has no volume. the 0 dimension;2 point, makes a line, the 1st dimension;3 lines make an area, the 2nd dimension;4 areas make a volume, a 3rd dimension;5 volumes make a time, a 4th dimension;6 times could make a 5th dimension?7..."?!"As the greatest volume is the universeand the smallest volume is a point.There must be 3 other volumes,to make the 5 necessary for time, to exist.As a volume can only exist within a greater volume,Then between the point and the universe there must be 3 other volumes, such as,the inaccessible cores of atoms, stars, and galaxies.The sum of which, all contained, in unbound volume,gives this universe gravity, and a center of gravity,that is everywhere, but only is detectable through the diameter of a volume of mass.
The dimension of impulse is[ force x time ] = [ mass x length x time / time-squared ] = [ mass x length / time ] = momentum
The dimension is [M], that is, one lot of mass.
Momentum = Mass X Velocity Velocity = Displacement/Time Dimension of Mass = M Dimension of Displacement = L Dimension of Time = T Therefore Dimension of Velocity = LT-1 Therefore Dimension of Momentum = MLT-1
The quantity called the Gravitational constant (G) has the following dimension: [G] = L3T-2M-1 The mass exponent is "negative" ... but watch out, it only means that mass is on the denominator ... i.e. [G] = L3 / T2M
Mass is dimensionless. Its a property of matter.
On center.
The center of mass of a sphere is its geometric center.
The center of mass is the point where an object's mass is considered to be concentrated. The mass distribution refers to how the mass is distributed within the object. The position of the center of mass depends on the mass distribution of the object.
The center of mass of a soccer ball is its geometric center.
No, the center of mass of a body cannot lie where there is no mass. The center of mass is a point that represents the average position of all the mass in a system. In the absence of mass, there is no center of mass.