6. Linear Momentum Equations

Try these first

1. 1.

   What is linear momentum?

   Hint

   Think about what makes an object move.

2. 2.

   Define Bernoulli's Principle in simple terms.

   Hint

   Recall how fluids behave in different scenarios.

3. 3.

   Linear momentum is the product of mass and which of the following?

   • Pressure
   • Velocity
   • Density

   Hint

   Think about how we express motion.

4. 4.

   True or False: Bernoulli's principle states that an increase in fluid velocity represents an increase in pressure.

   • True
   • False

   Hint

   Consider the implications of energy conservation in flow.

5. 5.

   In a horizontal pipe, water flows at a speed of 2 m/s and a diameter of 0.1 m. Calculate the momentum influx and outflux if the pipe's diameter narrows to 0.05 m.

   Hint

   Start with A1V1 = A2V2 for flow continuity.

6. 6.

   You have a scenario where two jets collide at a certain angle. If the resultant force acting on the control volume is given as 50N and momentum influx is less than the outflux, what does this indicate?

   Hint

   Think about Newton's third law and momentum conservation.