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Physics Test 34

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Physics Test 34
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    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?

    Solution

    Work done = mgh = 1.2 × 0.3 × 10 = 3.6 J. (as Center of Mass is located at 0.3 m below the level of the table.)

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