Ideal Spring

  • Thread starter GeoKenshin
  • Start date
  • #1

Homework Statement



A car is hauling an 88 kg trailer, to which it is connected by a spring. The spring constant is 2350 N/m. The car accelerates with an acceleration of 0.29 m/s^2. By how much does the spring stretch?

Homework Equations



Fx -kx

The Attempt at a Solution



Fx -kx

88(.29) = -2350x

x = -0.01085957

This seems right. I tried -.0109 and .-01086 but no luck with that either. Am I using the wrong formula?
 

Answers and Replies

  • #2
G01
Homework Helper
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Homework Statement



A car is hauling an 88 kg trailer, to which it is connected by a spring. The spring constant is 2350 N/m. The car accelerates with an acceleration of 0.29 m/s^2. By how much does the spring stretch?

Homework Equations



Fx -kx

The Attempt at a Solution



Fx -kx

88(.29) = -2350x

x = -0.01085957

This seems right. I tried -.0109 and .-01086 but no luck with that either. Am I using the wrong formula?

Your method is correct. Maybe try dropping the negative. (They may be looking for a positive value for how far the spring stretched.)
 
  • #3
that worked. thanks.
 
  • #4
G01
Homework Helper
Gold Member
2,665
16
Anytime.:smile:
 

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