N similar slabs of cubical shape of edge b are lying on ground. Density of material of slab is p. Work done ot arrange them one over the other is -

Twenty identical cubical blocks each of mass 100 gm and of side 10cm are lying on a horizontal surface. Work done in piling them one above the other is, ( g = 10ms^(-2) )

If n number of identical cubes, each of mass m and side a lying on level ground. Find the work done in piling them one above the other.

Consider ..n.. number of indentical cubes each of mass ..m.. and side ..a.. lying on a level ground. Find the work done in piling them one above the other.

Identical cubes each of mass 'm' and side T' are on the horizontal surface.Then the minimum amount of work done to arrange them one on the other is