Question

Difine normal force?​

Answer 1

Answer:

Any Push or Pull acting on an object

Explanation:

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Answer 2

$\huge\underline\blue{Normal \: Force}$

The normal force is the support force exerted upon an object that is in contact with another stable object. For example, if a book is resting upon a surface, then the surface is exerting an upward force upon the book in order to support the weight of the book.