Calculating the minimum speed to produce a certain downforce

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SUMMARY

The discussion centers on calculating the minimum speed required for a Formula 1 car to generate downforce exceeding its weight. The car's mass is specified as 605 kg, resulting in a gravitational force of 5929 N. Participants emphasize the necessity of knowing the lift coefficient (Cl) and the frontal area (A) of the car to utilize the lift equation: L = 1/2 * ρ * v² * A * Cl. Without these parameters, determining the minimum speed remains unfeasible.

PREREQUISITES
  • Understanding of basic physics concepts, particularly forces and downforce.
  • Familiarity with the lift equation in aerodynamics.
  • Knowledge of lift coefficients and their significance in vehicle dynamics.
  • Basic algebra for manipulating equations to solve for unknown variables.
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  • Research the lift equation in detail, focusing on its application in aerodynamics.
  • Investigate how to determine the lift coefficient (Cl) for different Formula 1 car designs.
  • Explore methods for calculating the frontal area (A) of a Formula 1 car.
  • Study the relationship between speed, downforce, and vehicle stability in motorsport contexts.
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Students studying physics, automotive engineers, and motorsport enthusiasts interested in vehicle dynamics and aerodynamics.

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Homework Statement


The problem is to find the minimum speed of a Formula 1 car that would produce a downforce that is greater than the force of the car. The mass of the car is given: 605kg.

Homework Equations


I have absolutely no idea what equations to use.

The Attempt at a Solution


I don't even know how to approach this. I know that you have to find the force of the car (5929N) but I don't know how to go about finding the speed. I just need an equation that could help me.
 
Last edited:
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There is not enough information in the question. You'd have to know, at least, the lift coefficient of the the total vehicle due to its "wings".

If you know the lift coefficient, I'm guessing it would be negative, so that the lift acts downwards, then you could use the lift equation:

L=\frac{1}{2} \rho v^{2} A C_{l}

but like I said, you'll need more info.
 

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