A square metal plate 1.8 m side and 1.8 mm thick weighing 60 N is to be lifted through a vertical

[@abdirahmanmohamed3841]

Why are we not substituting the upthrust?

[@nishankarki5502]

What is the role of upthrust ?

[@vignesh_rmk]

You cannot convert the thickness 1.8mm to meter by substituting it on finding dy1. Because you already converted it into meter.

[@Chizzyyyyy]

Why’s the explanation not in English?

[@CivilMantraa]

sorry for that