What is the potential energy stored in a spring that has a restoring force of 1kN/m and has been stretched by 1 cm? Hints: Potential Energy =FS (force x distance stretched)
A. 1J
B. 10J
C. 100J
D. 1000J
E. No correct answer is available

Question

What is the potential energy stored in a spring that has a restoring force of 1kN/m and has been stretched by 1 cm? Hints: Potential Energy =FS (force x distance stretched)
A. 1J
B. 10J
C. 100J
D. 1000J
E. No correct answer is available

thomas5267 · Answer

It should be B but I am not sure.  Check required.

anonymous · Answer

Hmm. Anybody else mind checking?:) I appreciate it @thomas5267

anonymous · Answer

if you take 1000N * .01 m you get B. 10J

anonymous · Answer

Thanks for the double check!

thomas5267 · Answer

Wait.  That somehow doesn't seem right to me.  Don't close the question yet.

anonymous · Answer

no problem.  If you know anything about solenoids and inductance I would love for you to take a look at my question.

anonymous · Answer

Waiting!:)

anonymous · Answer

Haha sure dont. This was a random question from my basic engineering class. If I could help I def. would!

thomas5267 · Answer

It is actually E as 1000N/m * 0.01m = 10N.  By the equation E=FS we actually need to times 10N by 0.01m again to get 0.1J.

thomas5267 · Answer

@helloimjared

anonymous · Answer

Ahh how positive?:)

anonymous · Answer

@thomas5267

anonymous · Answer

Why multiply times the .01 twice? (curious not being judgemental)

thomas5267 · Answer

As the question is asking the potential energy of the spring.  1000N/m * 0.01m only calculates restoring force of the spring exerting.

thomas5267 · Answer

@helloimjared @JU

anonymous · Answer

I honestly have no idea, so i'm relying on u haha. This question is over my head.