8. Newton's Second Law

Try these first

1. 1.

   Define Newton's Second Law.

   Hint

   What does F represent in the equation?

2. 2.

   What is a vector quantity?

   Hint

   Think about how we describe forces.

3. 3.

   What is the formula for Newton's second law?

   • F = ma
   • F = mv
   • F = m/a

   Hint

   Think about how force is related to mass and acceleration.

4. 4.

   Is local acceleration time-dependent?

   • True
   • False

   Hint

   Consider what 'local' implies.

5. 5.

   A fluid particle is accelerating in various directions in a 3D flow field. Describe how you would use both local and convective accelerations to analyze the particle's motion. Provide examples.

   Hint

   Think about how velocities are measured over time versus across a spatial gradient.

6. 6.

   Explain how you would determine the material derivative for a fluid property such as temperature in a scenario where the fluid is heated from below. Describe the steps.

   Hint

   Consider both temporal and spatial changes in temperature.