Please look below for a link to this same question that I answered yesterday.
I would have helped with any of your other questions in which you showed some effort, but there weren't any.
A damp washcloth is hung over the edge of a table to dry. Thus, part (mass = mon) of the washcloth rests on the table and part (mass = moff) does not. The coefficient of static friction between the table and the washcloth is 0.395. Determine the maximum fraction [moff/mtotal] that can hang over the edge without causing the whole washcloth to slide off the table
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