Figure a hollow cube of side and volume
. There is a small chamber of volume
in the cube as shown. The chamber is completely filled by
kg of water. Water leaks through a hole
and spreads in the whole cube. Then the work done by gravity in this process assuming that the complete water finally lies at the bottom of the cube is
a) |
|
b) |
|
c) |
|
d) |
|
Figure a hollow cube of side and volume
. There is a small chamber of volume
in the cube as shown. The chamber is completely filled by
kg of water. Water leaks through a hole
and spreads in the whole cube. Then the work done by gravity in this process assuming that the complete water finally lies at the bottom of the cube is
a) |
|
b) |
|
c) |
|
d) |
|
(c)
Let be the height of water surface. Then,
CM gets lowered by
Work done by gravity