- #1

torresmido

- 20

- 0

I used Hooke's law (F=-Kx), but ended up having a negtive distance x=-0.2m. Is this expected? in the problem they say the spring stretches...this is confusing me...thank you for your help guys in solving this problem

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- Thread starter torresmido
- Start date

- #1

torresmido

- 20

- 0

I used Hooke's law (F=-Kx), but ended up having a negtive distance x=-0.2m. Is this expected? in the problem they say the spring stretches...this is confusing me...thank you for your help guys in solving this problem

- #2

JaWiB

- 285

- 0

On the other hand, if you choose up to be the negative direction, then your change in x is positive and the force on the weight is in the negative direction.

Either way, the spring stretches the same distance, the negative sign would just tell you which direction the end of the spring moves (and whether negative is up or down depends on your coordinate system)

- #3

physixguru

- 335

- 0

During compression delta x is negative.

you are correct.negative sign just indicates the direction of motion of spring.

- #4

torresmido

- 20

- 0

Thanks guys!!!!! this was so helpful

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