GENERAL KNOWLEDGE

Detailed explanation-1: -According to Newton’s first law of motion, any object moving at constant velocity has no net external force acting upon it, which means that the sum of the forces acting on the object must be zero. The mathematical way to say that no net external force acts on an object is F net = 0 F net = 0 or F = 0.

Detailed explanation-2: -1. Newton’s First Law of Motion (Inertia) An object at rest remains at rest, and an object in motion remains in motion at constant speed and in a straight line unless acted on by an unbalanced force.

Detailed explanation-3: -The property of a body to remain at rest or to remain in motion with constant velocity is called inertia. Newton’s first law is often called the law of inertia.

Detailed explanation-4: -Newton’s First Law: If no net force acts on an object it remains at rest, if initially at rest, or it maintains its velocity if initially in motion.

Detailed explanation-5: -To understand this we must use Newton’s second law-the law of acceleration (acceleration = force/mass). Newton’s second law states that the acceleration of an object is directly related to the net force and inversely related to its mass.