A uniform chain of length 4m is kept on a table such that a length of 120 cm hangs freely from the edge of the table. The total mass of the chain is 4 kg What is the work done in pulling the entire chain on the table ?

Explanation

To solve the problem of finding the work done in pulling the entire chain onto the table, we can follow these steps:

### Step 1: Determine the mass per unit length of the chain
The total mass of the chain is given as 4 kg and the total length of the chain is 4 m. We can calculate the mass per unit length (λ) using the formula:

\[ \text{Mass per unit length} (\lambda) = \frac{\text{Total mass}}{\text{Total length}} = \frac{4 \text{ kg}}{4 \text{ m}} = 1 \text{ kg/m} \]
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