For the cellar of a new house, a hole is dug in the ground, with vertical sidesgoing down 2.40 m. A concrete foundation wall is built all the way across the10.50 m width of the excavation. This foundation wall is 0.177 m away fromthe front of the cellar hole. During a rainstorm, drainage from the street fillsup the space in front of the concrete wall, but not the cellar behind the wall.The water does not soak into the clay soil. Find the force that the watercauses on the foundation wall. For comparison, the weight of the water isgiven by 2.40 m x 10.50 m x 0.177 m x 1000 kg/m3 x 9.80 m/s2= 43.7kN.N.

Question
Asked Nov 21, 2019
140 views
For the cellar of a new house, a hole is dug in the ground, with vertical sides
going down 2.40 m. A concrete foundation wall is built all the way across the
10.50 m width of the excavation. This foundation wall is 0.177 m away from
the front of the cellar hole. During a rainstorm, drainage from the street fills
up the space in front of the concrete wall, but not the cellar behind the wall.
The water does not soak into the clay soil. Find the force that the water
causes on the foundation wall. For comparison, the weight of the water is
given by 2.40 m x 10.50 m x 0.177 m x 1000 kg/m3 x 9.80 m/s2
= 43.7
kN.
N.
help_outline

Image Transcriptionclose

For the cellar of a new house, a hole is dug in the ground, with vertical sides going down 2.40 m. A concrete foundation wall is built all the way across the 10.50 m width of the excavation. This foundation wall is 0.177 m away from the front of the cellar hole. During a rainstorm, drainage from the street fills up the space in front of the concrete wall, but not the cellar behind the wall. The water does not soak into the clay soil. Find the force that the water causes on the foundation wall. For comparison, the weight of the water is given by 2.40 m x 10.50 m x 0.177 m x 1000 kg/m3 x 9.80 m/s2 = 43.7 kN. N.

fullscreen
check_circle

Expert Answer

Step 1

Consider the depth of the vertical side be h, the width of the excavation be w, the density of the water be ρ, the gauge pressure at the bottom be Pb, the gauge pressure at the top, that will be zero because the depth at top from the datum is zero, be Pt,

 

The given values are,

h 2.90 m
w 10.50 m
p= 1000 kg/m
help_outline

Image Transcriptionclose

h 2.90 m w 10.50 m p= 1000 kg/m

fullscreen
Step 2

The average pressure on the foundation wall d...

av
2
pgh, +pgh_pg(0)+ pgh
2
2
pgh
2
help_outline

Image Transcriptionclose

av 2 pgh, +pgh_pg(0)+ pgh 2 2 pgh 2

fullscreen

Want to see the full answer?

See Solution

Check out a sample Q&A here.

Want to see this answer and more?

Solutions are written by subject experts who are available 24/7. Questions are typically answered within 1 hour.*

See Solution
*Response times may vary by subject and question.
Tagged in

Science

Physics

Fluid Mechanics

Related Physics Q&A

Find answers to questions asked by student like you

Show more Q&A add
question_answer

Q: A girl of mass m1=60.0 kilograms springs from a trampoline with an initial upward velocity of vi=8.0...

A: Click to see the answer

question_answer

Q: A person in a cave emits a sound and receives an echo 2.5 seconds later. How far is that person away...

A: Time of echo T = 2.5 sLet the distance of the wall from person S = ?Total distance travel by sound =...

question_answer

Q: A spring with spring constant 20.0 N/m is attached to a wall on one end, and a 4.00 kg block on the ...

A: Consider a spring with spring constant 20N/m and mass 4kg attached to a wall.

question_answer

Q: A car of mass 972 kg is traveling 24.4 m/s when the driver applies the brakes, which lock the wheels...

A: a)The magnitude of acceleration of the car is,

question_answer

Q: The 17 kg shopping cart carries a 56 kg child. The shopping cart wheel base b = 680 mm and its verti...

A: Given information:

question_answer

Q: The mass of the uniform bar AB is100 gram. Calculate the couple C required for equilibrium if the an...

A: Draw the free body diagram of the bar AB.

question_answer

Q: A boat takes 3.50 hours to travel 10.0 km down a river, then 5.40 hours to return.   How fast is the...

A: Click to see the answer

question_answer

Q: The speed of a nerve impulse in the human body is about 100 m/s. If you accidentally stub you toe in...

A: Write the expression for time taken to travel a distance 

question_answer

Q: 1. The Coulomb's force between a proton and an electron is 2.27x1039 times greater than the gravitat...

A: The given relation between gravitational force and coulombic force