Work, Power and EnergyEasy
Question
A uniform chain of length 2 m is kept on a table such that a length of 60 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?
Options
A.7.2 J
B.3.6 J
C.120 J
D.1200 J
Solution
Work done = mgh = 1.2 × 0.3 × 10 = 3.6 J.
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