Finding the friction coefficient?

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SUMMARY

The discussion focuses on calculating the minimum coefficient of static friction required for a Porsche to accelerate at 11.2 m/s² without tire slippage. The key equation used is the relationship between static friction (fs) and normal force (N), expressed as fs/N = coefficient of static friction. Participants clarify that while mass (m) is not provided, the acceleration (a) is known, allowing for the application of Newton's second law (F = ma) to derive the necessary friction coefficient without needing the mass explicitly.

PREREQUISITES
  • Understanding of Newton's second law of motion (F = ma)
  • Knowledge of static friction and its relationship to normal force
  • Basic algebra for manipulating equations
  • Familiarity with kinematic equations
NEXT STEPS
  • Study the derivation of the coefficient of static friction in various scenarios
  • Learn about the role of normal force in friction calculations
  • Explore real-world applications of friction in automotive dynamics
  • Review kinematic equations related to acceleration and force
USEFUL FOR

Students in physics or engineering courses, automotive engineers, and anyone interested in the principles of motion and friction in vehicles.

papi
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Homework Statement



Hopping into your Porsche, you floor it and accelerate at 11.2 m/s2 without spinning the tires. Determine the minimum coefficient of static friction between the tires and the road needed to make this possible.

Homework Equations




well I know fs/N= the coefficient, however, even though N=ma, you dnt have an m nor an a. i just dnt see adequate info given. help!
 
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papi said:

Homework Statement



Hopping into your Porsche, you floor it and accelerate at 11.2 m/s2 without spinning the tires. Determine the minimum coefficient of static friction between the tires and the road needed to make this possible.

Homework Equations




well I know fs/N= the coefficient,
yes
however, even though N=ma,
why do you say N=ma?
you dnt have an m nor an a. i just dnt see adequate info given. help!
the acceleration, a, is given. Write the Newton 2 equation, looking in the x direction. What's the net force in that direction? Maybe you won't need to know m
 

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