What is our present understanding of \"contact\" forces? Atomic electric fields

Question

What is our present understanding of "contact" forces?

Atomic electric fields resist inter-penetration.

All contact forces can be expressed in terms of the normal force.

Protons cannot be pushed close to each other.

Little bumps on object surfaces resist slipping action.

Atomic electric fields resist inter-penetration.

All contact forces can be expressed in terms of the normal force.

Protons cannot be pushed close to each other.

Little bumps on object surfaces resist slipping action.

Explanation / Answer

a contact force, is a force that acts at the point of contact between two objects,in contrast to body forces. Contact forces are described by Newton's laws of motion, as with all other forces in dynamics.

Contact force is the force in which an object comes in contact with another object. Contact forces are also direct forces

Now , as for our understanding of contact forces,

Little bumps on object surfaces resist slipping action.

Little bumps on object surfaces resist slipping action.

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