A hollow sphere is held suspended. Sand is now pouredinto it in stages.The centre of gravity of the sphere with the sanda) 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

A hollow sphere is held suspended. Sand is now pouredinto it in stage

1.	A hollow sphere is held suspended. Sand is now pouredinto it in stages.The centre of gravity of the sphere with the sanda) 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» <p>The centre of gravity initially falls become while pouring sand it comes to the bottom of the sphere so mass is concentrated in the bottom so centre of gravity falls.And after filling all the sphere with sand it comes to its original position.</p>