A uniform chain of length L and mass M overhangs a horizontal table with its two third part n the table. The friction coefficient between the table and the chain is `mu`. Find the work done by the friction during the period the chain slips off the table.

Explanation

To solve the problem, we will follow these steps:

### Step 1: Understand the Setup
We have a uniform chain of length \( L \) and mass \( M \) overhanging a horizontal table. Two-thirds of the chain is on the table, and one-third is hanging off the edge. The coefficient of friction between the chain and the table is \( \mu \).

### Step 2: Determine the Length on the Table
Since two-thirds of the chain is on the table, the length of the chain on the table is:
\[
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