Question

A hollow sphere is held suspended. Sand is now poured into it in stages. The centre of gravity of the sphere with the sand

• A. Rises continuously
• B. Remains unchanged in the process
• C. First rises and then falls to the original position
• D. First falls and then rises to the original position

Answer 1

Answer: (D)

First falls and then rises to the original position

Initially centre of gravity is at the centre. When sand is poured it will fall and again after a limit, centre of gravity will rise.