A uniform chain of length \( 2 \mathrm{~m} \) is kept on a table such that a length of \( 60 \ma...

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A uniform chain of length \( 2 \mathrm{~m} \) is kept on a table such that a length of \( 60 \mathrm{~cm} \) hangs freely from the edge of the table. The total mass of the chain is \( 4 \mathrm{~kg} \). What is the work done in pulling the entire chain on the table
[AIEEE 2004]
(a) \( 7.2 \mathrm{~J} \)
(b) \( 3.6 \mathrm{~J} \)
(c) \( 120 \mathrm{~J} \)
(d) \( 1200 \mathrm{~J} \)
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