12.2. Fluid Statics and Rigid Body Motions

Try these first

1. 1.

   What is buoyancy?

   Hint

   Think of objects floating in water.

2. 2.

   What does the metacentric height indicate?

   Hint

   Consider the righting ability of ships.

3. 3.

   What is buoyancy?

   • A downward force
   • An upward force
   • No force

   Hint

   Think of a balloon in water.

4. 4.

   True or False: An object will float if its density is less than the fluid's density.

   • True
   • False

   Hint

   Consider how boats remain above water.

5. 5.

   Consider a small boat with a center of gravity at 1.5 m and a metacenter at 2.5 m. If the boat tips slightly, what can be predicted about its behavior?

   Hint

   Relate back to the definitions of stability mentioned earlier.

6. 6.

   A container filled with water is placed in a vehicle that accelerates at 3 m/s². How would you describe the pressure distribution inside the container?

   Hint

   Think about how fluids respond to acceleration.