A bullet hits and gets embedded in a solid block resting on a frictionless surface. In this process, which of the following is correct ?

A bullet hits and gets embedded in a solid block resting on a frictionless surface. In this process which is correct ?

A bullet hits and gets embedded in a solid block resting on a frictionless table. What Is conserved?

A bullet in motion hits and gets embedded in a solid block resting on a frictionless table. What is conserved ?

A bullet is fired and gets embedded in a block kept on table. If table is frictionless, then

A bullet is fired and gets embedded in a block kept on table. If table is frictionless, then

If a sphere of mass m moving with velocity u collides with another identical sphere at rest on a frictionless surface, then which of the following is correct ?