application of newton's all laws of motion
Answers
Explanation:
Newton's laws of motion are three physical laws that, together, laid the foundation for classical mechanics. They describe the relationship between a body and the forces acting upon it, and its motion in response to those forces. More precisely, the first law defines the force qualitatively, the second law offers a quantitative measure of the force, and the third asserts that a single isolated force doesn't exist. These three laws have been expressed in several ways, over nearly three centuries, and can be summarised as follows:
First law: In an inertial frame of reference, an object either remains at rest or continues to move at a constant velocity, unless acted upon by a force.
Second law: In an inertial frame of reference, the vector sum of the forces F on an object is equal to the mass m of that object multiplied by the acceleration a of the object: F = ma. (It is assumed here that the mass m is constant – see below.)
Third law: When one body exerts a force on a second body, the second body simultaneously exerts a force equal in magnitude and opposite in direction on the first body.
The three laws of motion were first compiled by Isaac Newton in his Philosophy Naturalist Principia Mathematica (Mathematical Principles of Natural Philosophy), first published in 1687. Newton used them to explain and investigate the motion of many physical objects and systems. For example, in the third volume of the text, Newton showed that these laws of motion, combined with his law of universal gravitation, explained Kepler's laws of planetary motion.
A fourth law is often also described in the bibliography, which states that forces add up like vectors, that is, that forces obey the principle of superposition.
Newton 1st law of motion:
This was the secret behind why we get into sleep at a place and end up not wakeing at another place. This Newton 1st law was also called as law of inertia, until and unless any external force act on it the body donot change its position from rest or from uniform motion. You may raise a doubt that why some people move from one place to another while sleep as law was working out fine. If it was the case tell them to go consult a doc as he had a disoder somnambulism (sleep walk).
2nd law:
We generally miss a detail while we are watching cricket that is why feilders do not get hurt when they catch the ball which was capable of breaking his hand if it was given some momentum. Thats becoz Every fielder applies this law knowingly or un knowingly.the law behind it was Professional sportsmen swing their hand back once they catch the ball as it provides the ball more time to lose its speed, in turn increasing the Δt and reducing Δp / Δt. This leads in keeping the sportsman hand safe!
3rd law:
This was law was behind every movement of our life. I don't know why it was given last place but it should be placed on top in this queue,If I was Newton I would keep it on no.1 . This plays a major role in our day to day activities for example walking, if push the land by our legs we move forward this was Newton's 3rd law for every reaction there is an equal and opposite reaction.
hope it helps