A large block of ice cuboid of height 'l' and density rho_(ice) = 0.9 rho_(w') has a large vertical hole along its axis. This block is floating in a lake. Find out the length of the rope required to raise a bucket of water through the hole.

A large block of ice cuboid of height 'l' and density rho_(ice) = 0.9

1.	A large block of ice cuboid of height 'l' and density rho_(ice) = 0.9 rho_(w') has a large vertical hole along its axis. This block is floating in a lake. Find out the length of the rope required to raise a bucket of water through the hole.
Answer» Solution :LET area of ICE-cuboid excluding hole `= A` weight of ice BLOCK `=` weight of liquid displaced `Arho_(ice)LG = Arho_(w) (l - h) g` `(9l)/(10) = l - h RARR h = l - (9l)/(10) = ((l)/(10))`