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

In summary, a 10 000 kg race car traveling at 10.0 m/s comes to a halt when its gas runs out. To calculate the distance it travels before stopping, the equations F=ma and v2^2-v1^2=2ad can be used, but this requires knowing the coefficient of friction and retarding acceleration. Without this information, it is not possible to solve the problem.
  • #1
irNewton
17
0

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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  • #2
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.
 
  • #3
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...
 

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

1. What is the definition of "Intro Physics Question with too many unknowns"?

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