Hi,
I need to know how much ground water presuure would be required to lift a 1.200m diameter plastic tank weighing 650kg out of the ground please,
Please supply the answer in Kpa or psi
Cheers
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To determine the groundwater pressure required to lift the plastic tank, we need to consider the weight of the tank and the area over which the pressure is applied. Here's how you can calculate it:
1. Calculate the area of the tank's base:
The area of a circle can be calculated using the formula: A = πr^2, where r is the radius of the tank.
Since the diameter is given as 1.200m, the radius (r) would be half of that: 0.600m or 600mm.
Substitute the value in the area formula to find the area (A) of the base.
2. Calculate the force acting on the base of the tank:
The weight of the tank is given as 650kg. Use the formula: force = mass * acceleration due to gravity (F = mg).
Acceleration due to gravity is approximately 9.8 m/s^2.
Substitute the values to calculate the force (F) acting on the base.
3. Calculate the groundwater pressure:
Pressure is defined as force per unit area. Since we have the force and the area, we can calculate the pressure.
Pressure = force / area
4. Convert the pressure to units of your choice:
You mentioned you would like the answer in kilopascal (Kpa) or pounds per square inch (psi). You may use a conversion factor to convert the pressure from SI units (pascal) to the desired units.
By following these steps, you should be able to calculate the groundwater pressure required to lift the plastic tank. Let me know if you need any further assistance with the calculations.