Question

When two objects in contact with each other start free fall at the same time, what is the normal force between them? PLEASE ANSWER IF YOU ARE CHAMPION OF PHYSICS..

Answer 1

Answer:

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Explanation:

when two surfaces are in contact (e.g. a box and a table) they exert a normal force on each other, perpendicular to the contacting surfaces. This normal force will be as large as necessary to prevent the surfaces from penetrating each other.

Normal force is a contact force. If two surfaces are not in contact, they can't exert a normal force on each other. For example, the surfaces of a table and a box cannot exert normal forces on each other if they are not in contact.