Question

Explain about newton's all laws of motion ??

Answer 1

Hey mate !!!

here is your answer !!!


following are the laws of Motion given by Newton:-



1) according to first law of motion:-

a body continue in its state of rest or motion in a straight line whenever , some force applied to change its position of rest or motion.




for example:-
when a book is kept on table it will maintain its position
whenever there is external force is applied it will change its position.



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2) second law of Newton:-

according to this the rate of change of momentum of a body is directly proportional to the applied unbalanced force and did this change take place always in direction of applied force.



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3) Newton third law of motion:-

according to Newton's third law of motion every action has equal and opposite reaction.


when a body exits from pores on another body then one body exerts equal and opposite forces at the same time of the first body.

for example ;-

when we sout of bullet then it exerts same force backward on our shoulder


climbing on a boat is an example of Newton's third law


hope it helps you dear!!!



thanks ☺☺

Answer 2

Hi there !!

The Newton's 1st , 2nd and 3rd laws of motion are as follows

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.1. The first law of motion [law of inertia]
-) The 1st law of motion states that an object will continue to remain at rest or in uniform motion in a straight line unless acted upon an external unbalanced force.
Meaning , if the object is moving in uniform motion , it will continue to move with the same speed and the same given direction and if an object is at rest , it will continue to remain at rest unless an external unbalanced force is applied
Eg : A table continues to be in rest unless an external force is applied which will be higher than the frictional in order to move the table.
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2. The second law of motion
The second law of motion states that the rate of change of momentum(p) is directly proportional to the applied unbalanced force in the direction of force.
Mathematically,
p = mv
Where ,p = momentum , m = mass of the object , v = velocity
And
F = ma
F = applied force also called the rate of change of momentum
m = mass of the object
a = acceleration

Eg. - A feilder while catching a fast moving ball gradually pulls his hands backwards with the moving ball so as to increase the time period as well as decrease velocity to zero.
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3. The third law of motion
The 3rd law of motion states that when one object exerts force on other object , the other object instantaneously exerts the force back on the first. These two forces always act on 2 different objects and are equal and opposite.
Meaning , FOR EVERY ACTION , THERE IS AN EQUAL AND OPPOSITE REACTION .

Eg. - When a gun is fired , it exerts a forward force on the bullet(called the action force) . The bullet exerts equal and opposite force on rhe gun which results in the recoil.

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Hope it helps :D