Question

What is centre of mass

Answer 1

centre of mass means all the mass of body is appended at the point

Answer 2

$\huge\boxed{\texttt{\fcolorbox{red}{aqua}{Hey Mate}}}$

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