Question

The COM of body in pure rotation does-

• A. translation
• B. rotation
• C. remain steady
• D. none of these

Answer 1

The correct option is C remain steady

Net external force acting on a pure rotating body is zero i.e. $F_{ext}=0$

Thus acceleration of COM $a_{cm}=\frac{F_{ext}}{M}=0$

Hence the COM of body in pure rotation remain steady.