G L Mittal and TARUN MITTAL Solutions for Chapter: Fluid Pressure, Exercise 2: NUMERICALS

A force of $80 N$ is applied on a nail, whose tip has a cross-sectional area of $0.002 c{m}^2$. Calculate the pressure on the tip.

The weight of a person is $80 kgf$. How much pressure is exerted by him on the ground, when he is lying. Given: area of the body of the person $1.2 m^2$ and that of a foot is $60 c{m}^2$.

The weight of a person is $80 kgf$. How much pressure is exerted by him on the ground, when he is standing on both his feet. Given: area of the body of the person $1.2 m^2$ and that of a foot is $60 c{m}^2$.

The air-pressure is equal to $75 \mathrm{cm}$ column of mercury. Express it in $\mathrm{N} {\mathrm{m}}^{-2}$. Given $\mathrm{g}=10 \mathrm{m} {\mathrm{s}}^{-2}$, density of mercury $=13.6\times {10}^3 \mathrm{kg} {\mathrm{m}}^{-3}$.

Calculate the pressure of seawater at a depth of $200 m$, when the average density of seawater is $1.032\times {10}^3 kg{m}^{-3}$.