Question

Question

Answer 1

Say you apply a force to a wall and the wall deforms somewhat as a result of this applied force. What is causing the wall to apply a contrary force back on my hand on the molecular level?

Answer 2

The wall is stable in the position it is. When you apply a force on it, you displace its molecules from its stable position. Nature doesnt like someone disturbing stability. So, the restoring forces act to bring back the molecules to its original position. That's the force you feel on your hand

Answer 3

Is it a nuclear force? as in the wall atoms behind the atoms being pushed apply a force because the nuclei are getting to close? to attempt and restore their equilibrium position?

Answer 4

Yeah,but not only that, the restoring force must be a combination of all kinds of electromagnetic interactions that can take place(replusion between electrons and nuclei)

Answer 5

Awesome. Thanks :D