Why wet socks are hard to remove?
The air between the wet socks and the feet is drained. The space between the socks is filled with water and becomes a closed whole. The air outside cannot enter the socks.Adhesion, tension is the force between the liquid molecules, adhesion is the force between the liquid and the external object.Wet socks, because there is water on the friction coefficient increases, so the friction increases, so difficult to remove.Another reason is that socks are usually made of cotton.They shrink when they see water.It makes the socks and feet squeeze tighter, plus the friction coefficient increases, so it's harder to get off.This is caused by the surface tension of the water.Like a piece of wet plastic, it can easily absorb objects that have a smooth surface.
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