Question 1183667
.


Could you explain me   PLEASE  the meaning of this passage



        "When she is in a trough her feet dig  0.5m  into the water  (-0.5m)."


        and how does it relate to the problem.



Reading your post,  I think it would be   MUCH   BETTER   if you write essays and post them to New Your Times 

than if you create nonsensical  " Math problems "  and post them to this forum.