Net downward force

  • Thread starter badman
  • Start date
  • #1
57
0
You are assigned the design of a cylindrical, pressurized water tank for a future colony on Mars, where the acceleration due to gravity is 3.71 \;{\rm m}/{\rm s}^{2}. The pressure at the surface of the water will be 150 kPa and the depth of the water will be 13.5 m. The pressure of the air in the building outside the tank will be 88.0 kPa.


Find the net downward force on the tank's flat bottom, of area 2.25 m^2, exerted by the water and air inside the tank and the air outside the tank.?


im clueless :confused:
 

Answers and Replies

  • #2
Doc Al
Mentor
44,993
1,266
What's the static fluid pressure at a given depth beneath the surface of a fluid? When calculating the total pressure above the tank's bottom, don't forget to add the pressure at the surface.

To find the net pressure on the tank bottom, don't forget to consider the pressure of the outside air pushing from below.

Once you have the net pressure, you can figure out the net force, given the area.
 

Related Threads on Net downward force

  • Last Post
Replies
5
Views
6K
Replies
4
Views
2K
  • Last Post
Replies
2
Views
2K
Replies
1
Views
12K
Replies
10
Views
841
Replies
13
Views
9K
Replies
2
Views
471
  • Last Post
Replies
1
Views
11K
  • Last Post
Replies
2
Views
2K
  • Last Post
Replies
1
Views
1K
Top