Cereal Box in Liquid-1
Say I have a cubic cereal box that,when in water, floats with 10 % of it sticking out.
Now, when I add oil with 80 percent density of that of water, what percent of the box is going to stay in the water? Suppose air density is negligible.
The answer is 50.
This section requires Javascript.
You are seeing this because something didn't load right. We suggest you, (a) try
refreshing the page, (b) enabling javascript if it is disabled on your browser and,
finally, (c)
loading the
non-javascript version of this page
. We're sorry about the hassle.
1 solution
When it is in water it is displacing say, 9 kilograms of water, so, when the oil is added, it has to displace the same amount of water, which, only works when it is 50 percent in the water and 50 percent in the oil for a total sum of, 5 kilos from the water, and 4 kilos from the oil. Hence, the answer is 50%!