- #1
tellmesomething
- 379
- 42
Consider a spring in its natural length. I start pulling the string and the force i apply increase from 0 to 5, while this happens theres a restoring force wanting to be back in its original position(intermolecular force) and i am able to stretch the string until this spring force or restoring force equals to my applied force. Now when i remove my hand why does it go back to its original position, i understand the reaction force is opposite in direction to my applied force and at the point where the extension stops the net force on the string is 0. But when i remove my hand does the external force vanish? Its still there right shouldnt the spring still be in equilibrium?