Question

The atmospheric pressure at the surface of Venus is 91 times the pressure at sea level on earth. With approximately how much total force would Venus's atmosphere push on an average human being at sea level?

Answer 1

Pressure is the force
`F` exerted by a gas, a liquid or a solid on a surface (or area)
`A`, its unit is Pascal
`Pa` which is equal to
`N/m^(2)` and its formula is:

`P=(F)/(A)` (1)

Now, we know the atmospheric pressure on Earth
`P_(E)` at sea level is:

`P_(E)=101325 Pa` (2)

And we are told the atmospheric pressure at the surface of Venus
`P_(V)` is 91 times the pressure at sea level on earth:

`P_(V)=91P_(E)` (3)

This means:

`P_(V)=(91)(101325 Pa)` (4)

By solving equation (4) we will find the the atmospheric pressure at the surface of Venus:

`P_(V)=922285 Pa` (5)

In order to find the force Venus's atmosphere would push on an average human being at sea level, we have to substitute the value of
`P_(V)` in equation (1) and find
`F` , assuming that the surface area of an average human being is
`1.8m^(2)`:

`P_(V)=(F)/(A)`

`F=(P_(V))(A)` (6)

`F=(922285 Pa)(1.8m^(2))`

Finally:

`F=1660113N`