Physics · 2021
JEE Main · 26 August 2021, Shift 1 · Q21
A uniform chain of length 3 meter and mass 3 kg overhangs a smooth table with 2 meter laying on the table. If k is the kinetic energy of the chain in…
A uniform chain of length $\displaystyle 3$ meter and mass $\displaystyle 3$ kg overhangs a smooth table with $\displaystyle 2$ meter laying on the table. If k is the kinetic energy of the chain in joule as it completely slips off the table, then the value of k is \_\_\_\_.
(Take $\displaystyle \mathrm{g}=10 \mathrm{~m} / \mathrm{s}^2$ )
Official answer
40
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JEE Main 2021 Physics question, with the answer from NTA’s final answer key. Where our answers come from.