Ncert Exercises & Solutions

For which of the following does the centre of mass lie outside the body?
1. A pencil
2. A shotput
3. A dice
4. A bangle

Hint: The centre of mass can lie outside an object for hollow or ring-like shapes.

Explanation: The bangle is a hollow ring, and its centre of mass is located at the centre \((C)\) of the hole as shown in the figure, which lies outside the material of the bangle itself.

Hence, option (4) is the correct answer.