Question

A book weighs 4 N. When held at rest in your hands, the net force on the book is

Answer 1

[AI-generated answer — Explain Bot]

zero.

The net force on the book is zero because it is held at rest, which means it is not accelerating. According to Newton's first law of motion, an object at rest will remain at rest unless acted upon by an external force. Since the book is not moving, the forces acting on it must be balanced. In this case, the force of gravity pulling the book downwards is balanced by the force exerted by your hands upwards. These two forces cancel each other out, resulting in a net force of zero on the book.