Question

A block of ice of total area A and thicknes `0.5m` is floating in water. In order to just support a man of nass `100kg`, the area A should be (the specific gravity of ice is 0.9)
A. `2.2m^(2)`
B. `1.0m^(2)`
C. `0.02m^(2)`
D. None of these

Answer 1

Correct Answer - D
Total weight=total upthrust
`(Axx0.5xx900)g+(100)g=Axx0.5xx1000xxg`
`:. A=2m^(2)`.