- #1
rudransh verma
Gold Member
- 1,067
- 95
Water is made up of loose molecules but a body like ice is bonded strongly into a shape.
Imagine a ice brick. It will have friction between it and the surface when tried to move. Now it slowly starts melting. The molecules of ice will start sticking on the surface.
Somehow the cluster of molecules opposes the push.
When free these molecules stick on surface and can be moved by a mere blow of wind but when bonded into a solid body the structure of large collection of molecules put pressure on the molecules below and the actual contact area increases as we increase weight. Now the molecules come very close to the surface and this creates inter molecular bonding which opposes any applied force on the body. When we apply force on above part of the body it opposes our push because it’s bonded to the molecules that are in turn weakly bonded to the surface.
In starting the ice is heavy. More actual contact area. More bonding and so more opposing of movement of above part of ice experiencing more friction. As the ice starts melting the pressure of above molecules on the very lower part decrease and so does the inter molecular bonding. This means lesser force on the upper part and the body will move more easily with the lowest layer of molecules in touch with surface.
Am I thinking right on this?
Imagine a ice brick. It will have friction between it and the surface when tried to move. Now it slowly starts melting. The molecules of ice will start sticking on the surface.
Somehow the cluster of molecules opposes the push.
When free these molecules stick on surface and can be moved by a mere blow of wind but when bonded into a solid body the structure of large collection of molecules put pressure on the molecules below and the actual contact area increases as we increase weight. Now the molecules come very close to the surface and this creates inter molecular bonding which opposes any applied force on the body. When we apply force on above part of the body it opposes our push because it’s bonded to the molecules that are in turn weakly bonded to the surface.
In starting the ice is heavy. More actual contact area. More bonding and so more opposing of movement of above part of ice experiencing more friction. As the ice starts melting the pressure of above molecules on the very lower part decrease and so does the inter molecular bonding. This means lesser force on the upper part and the body will move more easily with the lowest layer of molecules in touch with surface.
Am I thinking right on this?
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