1.3. Calculating pressure and force

Try these first

1. 1.

   What is the formula to calculate hydrostatic pressure at a depth?

   Hint

   Consider the relationship between pressure, depth, and density.

2. 2.

   How do you find the centroid of an elliptical area?

   Hint

   Recall the properties of ellipses regarding their geometry.

3. 3.

   What is hydrostatic pressure dependent on?

   • Density
   • Depth
   • Volume
   • Depth
   • Temperature
   • Pressure

   Hint

   Think about the formula P = ρgh.

4. 4.

   The resultant force on a submerged surface is based on which of the following?

   • True
   • False

   Hint

   Consider how forces operate on submerged objects.

5. 5.

   A gate experiences a pressure of 8000 Pa at the centroid and has a width of 3 meters. Calculate the resultant force on the gate.

   Hint

   Remember to calculate area based on the gate's dimensions.

6. 6.

   You have a rectangular surface measuring 2m by 3m submerged at a depth of 5m in water. Calculate the pressure at the centroid and the resultant force.

   Hint

   Evaluate step by step to ensure accuracy.