Question

The law that states that every object maintains constant velocity unless acted on by an unbalanced force is: a) Newton's Third Law of Motion. b) Newton's First Law of Motion. c) Newton's Second Law of Motion. d) The Law of Conservation of Momentum.

Answer 1

Newton's First Law of Motion, also known as the law of inertia, is the law that states that every object maintains constant velocity unless acted on by an unbalanced force. It means that an object continues in its current state until a force compels it to change. The reference frame in which Newton's first law is valid, is an inertial reference frame.

Step-by-step explanation:

The law that states that every object maintains constant velocity unless acted on by an unbalanced force is b) Newton's First Law of Motion. Also known as the law of inertia, it means that an object will continue to be in a state of rest or move at a constant speed in a straight line unless it is compelled to change that state by forces acting on it.

As stated in Newton's first law, an object's velocity remains constant if the net force on it is zero. Newton's first law applies to objects with constant velocity. Hence, an inertial reference frame, in which Newton's first law is valid, is a reference frame where the object's velocity remains constant if the net force on it is zero.

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