When we apply a force on a wall of infinite mass but the wall remains at rest, have we done any work on the wall? Does the wall do work on us?

A ball of mass m moves with speed v and stricks a wall having infinite mass and it returns with same speed then the work done by the ball on the wall is

A ball of mass m moves with speed v and stricks a wall having infinite mass and it returns with same speed then the work done by the ball on the wall is

When force 6 N applied on a wall, the wall remains in the same position, calculate the workdone.

When do we say that work is done ?

When do we say that work is done ?

When do we say that work is done ?

When do we say that work is done?