Suppose I have a two masses attached with a spring on ei either side and one of the masses is kept in contact to the wall like in this diagram with friction neglected everywhere.
Now when the wall is removed after equilibrium is set up then instantaneous ly the spring force remains the same and it accelerates m2 towards right.What I don't understand is how the mass m2 is experiencing a spring force even thought it is not deforming the spring..is the reason just that we are assuming it as a counter force against normal and that too equal to F. Can objects experience spring force without deforming the spring ?
Like if I was holding a spring with it's end free and my friend starts pushing t until he isn't able to....will I move in this situation or more carefully will I be always moving in this situation