A uniform chain of length 2 m is kept on a table such that a length of 60 cm hinges freely from the edge of the table. The total mass of the chain is 4 kg. The work done in pulling the entire chain on the table (Take 
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Text Solution
Verified by ExpertsThe correct answer is:
C
: Mass of length 2 m of the chain = 4kg
Mass of length 60 cm or 0.60 m of the chain
Weight of the hanging part of the chain
= 1.2 × 10 = 12 N
Since the centre of gravity of the hanging part lies at its mid-point, i.e. 30 cm or 0.30m
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