Answer:
Work done, W = 0 J
Explanation:
Given that,
The total weight of the container, W = 30 N
A container of water is lifted vertically 3 m then returned to its original position. We know that the difference in final and initial position of an object is called its displacement. Here, its displacement is equal to 0 as it reaches to its original position.
Work done is given by :
[tex]W=F{\cdot}d[/tex]
As d = 0
W = 0
So, no work was done by the container of water. Hence, this is the required solution.