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Help with physics please

Whats the difference between Hooke's Law and Elastic potential formula? Hooke's law: F=kx, Elastic potential: 1/2kx^2. How do I know when to use what?

December 4, 2012

4 Comments • Newest first

ltachifire

[quote=radkai]Force isn't energy. Newton isn't Joule.[/quote]

facepalm moment

Reply December 4, 2012
radkai

[quote=ltachifire]Elastic potential is to find PE.

The other is to find Force.

Net force = Change in Kinetic Energy so i'm pretty sure you can get one formula from the other if you think about it. Maybe im wrong though.[/quote]

Force isn't energy. Newton isn't Joule.

Reply December 4, 2012
ltachifire

Elastic potential is to find PE.

The other is to find Force.

Net force = Change in Kinetic Energy so i'm pretty sure you can get one formula from the other if you think about it. Maybe im wrong though.

jk. I'm wrong. And i had a test over this today LOL.

Reply December 4, 2012 - edited
Avatar

well hooke's law is F=kx so use it when you have/or need to solve for either forces or distances, elastic potential is energy e=1/kx^2, so use it when you have energy or distances and need to solve for the other

Reply December 4, 2012 - edited