17.4.2 - Aerodynamics in Sports
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Practice Questions
Test your understanding with targeted questions
Define drag force in your own words.
💡 Hint: Think about why objects slow down in water or air.
What is lift force?
💡 Hint: Consider how airplane wings help them rise.
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Interactive Quizzes
Quick quizzes to reinforce your learning
What does the drag coefficient (Cd) represent?
💡 Hint: Remember, Cd is about opposing motion.
True or False: Lift acts parallel to the flow of air or water.
💡 Hint: Think about how airplanes take off!
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Challenge Problems
Push your limits with advanced challenges
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.
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.
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