Hookes law says that extension is proportionate to force
- The length of an unstretched metal wire is called the natural length
- If a metal wire is supported at the tip and then a weight attached to the bottom, it stretches. The weight pulls down with force, producing an equal and opposite force at the support
- This will also happen to helical springs and any object that will stretch without deforming or snapping.
- Robert Hooke discovered in 1676 that the extension of a stretched wire…