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JEE Main Physics question

PhysicsWork, Energy and PowerJEE Main

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?

Answer: (B)

Solution

The fraction hanging is 60/200 = 3/10, so with chain length L = 2 m divided into n = 10/3 equal parts, the

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Question ID VK-153880