Practice Aerodynamics in Sports - 17.4.2 | 17. Drag and Lift | Fluid Mechanics - Vol 3
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17.4.2 - Aerodynamics in Sports

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Learning

Practice Questions

Test your understanding with targeted questions related to the topic.

Question 1

Easy

Define drag force in your own words.

💡 Hint: Think about why objects slow down in water or air.

Question 2

Easy

What is lift force?

💡 Hint: Consider how airplane wings help them rise.

Practice 4 more questions and get performance evaluation

Interactive Quizzes

Engage in quick quizzes to reinforce what you've learned and check your comprehension.

Question 1

What does the drag coefficient (Cd) represent?

  • The strength of lift
  • The resistance to motion
  • The speed of the fluid

💡 Hint: Remember, Cd is about opposing motion.

Question 2

True or False: Lift acts parallel to the flow of air or water.

  • True
  • False

💡 Hint: Think about how airplanes take off!

Solve and get performance evaluation

Challenge Problems

Push your limits with challenges.

Question 1

You are conducting a wind tunnel test on a new bicycle design. The frontal area is 0.5 m², the drag coefficient is calculated to be 0.3, and the air density is 1.2 kg/m³. If the bicycle travels at 15 m/s, calculate the drag force experienced.

💡 Hint: Make sure to substitute all known values accurately.

Question 2

A tennis player hits a ball of mass 0.058 kg with a diameter of 0.068 m at a spin rate of 3000 RPM. Calculate the lift force if the lift coefficient is 0.8 and the speed of the ball during play is 20 m/s. Will the ball rise or fall if the weight is 0.57 N?

💡 Hint: Calculate the frontal area first, then substitute into the lift formula.

Challenge and get performance evaluation