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April 21, 2014

April 21, 2014

Posted by **Rachel** on Friday, November 6, 2009 at 10:19am.

I know i must use Fs= kx,

but where do I start?

Do i find Fg at 1 m?

- Physics -
**bobpursley**, Friday, November 6, 2009 at 10:26amI would do it with energy.

mg(h+x)=1/2 k x^2

then solve for x in each case.

- Physics -
**Rachel**, Friday, November 6, 2009 at 10:29amokay, but what is the start of that eq'n?

It looks similar to Eg=Ek ?

- Physics -
**bobpursley**, Friday, November 6, 2009 at 10:31amPEintrampoline=PE gravity lost

- Physics -
**Rachel**, Friday, November 6, 2009 at 10:37ampe= potential energy?

- Physics -
**Rachel**, Friday, November 6, 2009 at 10:38amand how do i solve for x when it is on oth sides of the eq'n?

- Physics -
**bobpursley**, Friday, November 6, 2009 at 10:39ammultiply it all out, you will get a quadratic equation. Use the quadratic formula.

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