A uniform chain of mass 'm' and length 'L' is kept on a horizontal table with half of its length hanging from the edge of the table. Work done in pulling the chain on to the so that only (1)/(5)th of its length now hangs from the edge is,

A uniform chain of mass 'm' and length 'L' is kept on a horizontal tab

1.	A uniform chain of mass 'm' and length 'L' is kept on a horizontal table with half of its length hanging from the edge of the table. Work done in pulling the chain on to the so that only (1)/(5)th of its length now hangs from the edge is,
Answer» `(MGL)/(8)` `(mgl)/(50)` `(mgl)/(18)` `(mgl)/(200)` ANSWER :D