Physics question = Why is it impossible to pull a fluid?

Well...actually the gravitational field of the earth pulls the water against her crest...

But if you mean taking a pair of pincers and pulling water out of a bottle: that's impossible because the forces between the molecules (called cohesive forces) are just too weak.

A liquid where the cohesive forces are very strong is mercury. You can pick spilled mercury of the floor with a tool like a pair of pincers!

I'm not sure, is it molecule tension or surface tension that holds the fluid together, or lower pressure on the leading-edge. I think water can be pulled 25' max but it can be pushed to the sky.

fluids like air and water have weak inter molecular interactions compared to solids. low shear strength is a property of the fluid. unlike solids in which the shear increases when tangential force is applied till it breaks, fluids resist the shear force till a limit and then the shear motion continues even though the force remains constant.

Because they have tendency to flow so nothing to hold and pull. nor all molecules stick togethr in same shape.