EVERYDAY SCIENCE

Detailed explanation-1: -law of inertia, also called Newton’s first law, postulate in physics that, if a body is at rest or moving at a constant speed in a straight line, it will remain at rest or keep moving in a straight line at constant speed unless it is acted upon by a force.

Detailed explanation-2: -The focus of Lesson 1 is Newton’s first law of motion-sometimes referred to as the law of inertia. Newton’s first law of motion is often stated as. An object at rest stays at rest and an object in motion stays in motion with the same speed and in the same direction unless acted upon by an unbalanced force.

Detailed explanation-3: -The other name for Newton’s second law is the law of force and acceleration.

Detailed explanation-4: -The term inertia comes from the Latin word iners, meaning idle, sluggish. The term inertia may also refer to the resistance of any physical object to a change in its velocity. This includes changes to the object’s speed or direction of motion.

Detailed explanation-5: -Newton’s First Law of Motion Newton’s 1st law states that a body at rest or uniform motion will continue to be at rest or uniform motion until and unless a net external force acts on it.