Question

The pressure due to atmoshere is `1-013xx10^5` Pa. Find the force exerted by the atmosphere on the top surface of a table 2-0 m long and 1-0m wide.

Answer 1

Here, pressure dur to the atmosphere,`P=1.013xx10^5Pa=1.013xx10^5(N)/(m^2)`
area on which atmospheric pressure acts, `A=2.0mxx1.0m=2.0m^2`
Thus, force exerted by the atmosphere, `F=PA=(1.013xx10^5(N)/(m^2))xx(2.0m^2)`
`=2.026xx10^5`N