(adsbygoogle = window.adsbygoogle || []).push({}); 1. The problem statement, all variables and given/known data

1) A typical automobile tire has a gauge pressure of around 30 Ib/in^2. How much is that in pascals? If a car weighs 8897N(=2000lb), how much area(SI units) on each tire is in contact with the road?

2) A swimming pool 5m wide by 10m long is filled to a depth of 3m. What's the total force exerted on the bottom due to the water?

3) GIven that most people cannot suck water up a straw any higher than about 1.1m, what's the lowest gauge pressure they can creat in the lungs?

2. Relevant equations

F=PA

F=P(4A)

PA=F

P= p(h2O)gh

3. The attempt at a solution

1) 2.1 x 10^5 Pa and .011m^2 are answers..I didn't get these answers though..

2) 1.5 x10^6 n is the answer

3) -1.1 x10^4 Pa is the answer..

Please help me to get these answers by giving me steps and equations.

Thank you!

**Physics Forums | Science Articles, Homework Help, Discussion**

Join Physics Forums Today!

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

# Homework Help: Hydrostatic Pressure

**Physics Forums | Science Articles, Homework Help, Discussion**