Q2. Write first law of motion with example.
Answers
If a body is at rest it remains stationary and if it is in uniform motion it keeps moving with the same velocity in same direction unless a force is applied on it change the state of its motion .
Newton's first law of motion has two parts in it . The first part deals with the interia of the body .
★Example :
The motion of an airplane when the pilot changes the throttle setting of the engine is described by the first law. The motion of a ball falling down through the atmosphere, or a model rocket being launched up into the atmosphere are both examples of Newton's first law.
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What is Newton’s First Law of Motion?
Newton’s first law states that : a body remains in the state of rest or uniform motion in a straight line unless and until an external force acts on it. Law of motion in simple words, a body will not start moving until and unless an external force acts on it. Once it is set in motion, it will not stop or change its velocity until and unless some force acts upon it once more. The first law of motion is sometimes also known as the law of inertia.
★Example:
Wearing a seat belt in a car while driving is an example of Newton’s 1 law of motion. If an accident occurs, or if brakes are applied to the car suddenly, the body will tend to continue its inertia and move forward, probably proving fatal. To prevent such accidents seat belts are used which stops your body from moving forward in inertia avoiding danger.
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