Question

A system consists of mass M and m . The center of mass of the system is :

• A. at the middle
• B. near to M
• C. far from M
• D. at the position of larger mass

Answer 1

The correct option is A at the middle

$COM=\frac{M\times O+m\times L}{M+m}$

$=\frac{mL}{M+m}$

$\frac{mL}{M+m}<\frac{L}{2}$

So, COM will lie mass to mass M.