A uniform chain of mass m and length L is kept on horizontal table with half of its length hanging from the edge of the table . work done in pulling the chain on to the table so that only 1/5 of its length now hangs from the edge is,
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What's reference line?
It's an assumption, the potential energy at any point in this line is 0. (Just an assumption)
✔️ Point to note, since this is an uniform chain, it's mass is proportional to it's lenght.
If mass of length l is m, then mass of length (l/2) is (m/2) and like wise.
(Refer to the attachment for the image and answer as well)
★★ HOPE THAT HELPS ☺️ ★★
It's an assumption, the potential energy at any point in this line is 0. (Just an assumption)
✔️ Point to note, since this is an uniform chain, it's mass is proportional to it's lenght.
If mass of length l is m, then mass of length (l/2) is (m/2) and like wise.
(Refer to the attachment for the image and answer as well)
★★ HOPE THAT HELPS ☺️ ★★
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