How Far Will a Race Car Travel After Running Out of Gas?

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SUMMARY

The discussion centers on calculating the distance a race car weighing 10,000 kg will travel after running out of gas while initially moving at 10.0 m/s. Key equations used include F=ma and v²-v₁²=2ad. The challenge arises from the lack of information regarding the frictional force, which is essential for determining the retarding acceleration. Participants emphasize the necessity of finding the acceleration before attempting to solve the problem comprehensively.

PREREQUISITES
  • Understanding of Newton's Second Law (F=ma)
  • Familiarity with kinematic equations (v²-v₁²=2ad)
  • Knowledge of frictional forces and coefficients of friction
  • Basic principles of dynamics and motion
NEXT STEPS
  • Research how to calculate frictional force using normal force and coefficient of friction
  • Study the concept of retarding acceleration in motion problems
  • Explore advanced kinematic equations for varying conditions
  • Learn about real-world applications of dynamics in automotive engineering
USEFUL FOR

Students studying physics, automotive engineers, and anyone interested in the dynamics of motion and forces acting on vehicles.

irNewton
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Homework Statement


A race car with the weight of 10 000 kg is traveling at 10.0 m/s when it's gas runs out. How far will this race car travel till it reaches an absolute halt?


Homework Equations



F=ma
v2^2-v1^2=2ad

The Attempt at a Solution



Fn= 490 000N
v2^2-v1^2/2d= a

and I tried to sub that for a in F=ma, but got no where =/
 
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You are not providing the enough information.
1) What is the frictional force?
- How you get frictional force provided that normal force is given?
2) So what is retarding acceleration?

Find that acceleration before doing anything. Don't try to solve it all in one single step.
 
Hi, well we aren't given the coefficient of friction which makes this question ten times harder -.-
Or I could have easily figured this out myself...
 

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