6.3. Circle Properties

Try these first

1. 1.

   What is fluid statics?

   Hint

   Think about the characteristics of fluids that do not move.

2. 2.

   Define buoyancy.

   Hint

   Consider why boats float.

3. 3.

   What is the equation for pressure at a given depth?

   • P = ρg
   • P = ρgh
   • P = ρg/h

   Hint

   Think about the variables involved in defining pressure.

4. 4.

   True or False: The buoyant force on a submerged object is always equal to its weight.

   • True
   • False

   Hint

   Consider what happens when something is submerged.

5. 5.

   An irregularly shaped object is submerged in water. If it displaces 8 liters of water and the density of the fluid is 1000 kg/m³, calculate the buoyant force acting on the object.

   Hint

   Remember the relationship between displaced volume and buoyancy.

6. 6.

   A submerged rectangular gate has dimensions 2m * 1m and is inclined at an angle of 30 degrees. Calculate the resultant force on the gate when submerged to a depth of 3m.

   Hint

   Keep in mind that the effective area could change based on the angle.