1.

On one hand you say that when two smooth, even surfaces slide over each other, there is adhesion between them which causes friction. On the other you say that there is no friction between two smooth surfaces. I'm not getting. Mark the word SMOOTH.

Answer»

On one hand you say that when two smooth, even surfaces slide over each other, there is adhesion between them which causes friction. On the other you say that there is no friction between two smooth surfaces. I'm not getting.

Mark the word SMOOTH.



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