While travelling on a bus, when the bus driver abruptly applies the breaks, we tend to feel a momentary pull in the forward direction. Athlete taking a Short Run before Long/High Jumpġ. Examples of Newton’s First Law of Motion.In simple words, the first law of motion states that an object at rest stays at rest and an object in motion continues to exhibit motion, provided no force acts on the object from the outside. The laws of motion are mentioned in one of the books written by him called Philosophiae Naturalis Principia Mathematica, commonly known as the Principia. The laws of motion were discovered in the year 1687 by an English mathematician, physicist, astronomer, theologian, and author, Sir Issac Newton. It is proportional to the mass of the object, which means greater be the mass, greater is the inertia possessed by the body and vice-versa.
Inertia is the natural tendency of a body to resist change in its state. As per the statement of the first law of motion, two types of inertia exist in nature, namely, the inertia of rest and inertia of motion. Newton’s first law of motion states that an object continues to maintain its state of rest or motion unless or until it is acted upon by an external force.
