Newton's Second Law of Motion

What is Newton's Second Law of Motion?

Newton's Second Law of Motion, also known as the Law of Acceleration, is one of the three fundamental laws of classical mechanics formulated by Sir Isaac Newton in the late 17th century. This law describes the relationship between the force applied to an object, its mass, and the resulting acceleration it experiences. It can be mathematically expressed as follows:
F. = dp/dt. When mass is constant, the equation becomes: F = m a
Where:
F is the net force acting on the object (measured in Newtons, N),
m is the mass of the object (measured in kilograms, kg),
a is the acceleration of the object (measured in meters per second squared, m/s²).

In simpler terms, Newton's Second Law states that the acceleration of an object is directly proportional to the net force applied to it and inversely proportional to its mass. This means that if you apply a greater force to an object, it will accelerate more, and if the mass of the object is larger, it will require more force to achieve the same acceleration.

This law has numerous real-world applications and is fundamental in understanding how objects move under the influence of forces. It is essential in the fields of physics, engineering, and many other scientific disciplines that deal with motion and dynamics. Let's see how we can apply Newton's 2nd law of motion to the Chandrayaan 3 Launch.

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[AeshiSaid-zmrq]

Ball of 1kg will gain more velocity because it has lower mass and a ball with 2kg have more momentum because it has more mass

[iamsaad]

For class 9 students you can write rate of change of momentum as m(v-u)/t or mv-mu/t instead of delta p/ delta t

[satyamdubey]

Ball 1 will gain more velocity and ball 2 will gain more momentum as momentum is directly proportion to mass

[MuhammadQasim-thed]

1st will have more velocity ... For momentum because the magnitude of force is same on both ball, with different masses, that cause the conservation of momentum ... Boht velocity and mass balanced each other in each...

[surimuri]

Less mass means less inertia so that means if the same force is applied on two bodies of different masses, the lighter one will move faster. Now let’s say body A being the lighter one gained velocity of 20m/s and body B being the heavier one gained half its velocity I.e 10 m/s now, if we substitute these values in the formula for momentum we find that both of them have same momentum. But generally speaking heavier bodies have larger momentum.

[saumilimandal]

For the rocket propulsion case, F=v(dm/dt) is applicable..
Both the balls will have same momentum since force and time is same for two balls and force is rate of change of momentum..

Ball with mass 1 kg will gain more velocity as for same momentum, velocity is inversely proportional to mass.

[ashishkumarchaudhary]

1. Ball 1 will gain more velocity as velocity is inversely proportional to mass
(More mass less velocity
And less mass more velocity )
2. Ball 2 will have more momentum as ball 2 has more mass and momentum is directly proportional to mass and velocity .

[balindaobed]

Thank you, Professional Tutor. For me, i think both will have the same momentum but different acceleration. Ball 1 will have higher acceleration. Studying from uganda 🇺🇬

[shilpapampatwar]

Ball 1 will have more velocity as it has less mass and ball 2 will have an greater momentum as p=mv and mass of ball 2 is greater

[SANIDANIEL-to]

1st ball will have more velocity and both 1st and 2nd ball will have the same momentum.

[roopapai]

Thank you so much sir for your wonderful explaination, I am now clear about the Newton's second law sir

[Unanimousuploads]

Ball 2 will gain more velocity and momentum, since P=mv and further P is directly proportional to v and m, so momentum and velocity is more when mass is more.

Ball 2 has more mass(2kg).
Therefore, BALL 2 has MORE velocity and momentum. 😊
Thank you.

[-shinjinidasgupta]

Awesome Sir. Your videos are just amazing. Ball 1 will have more velocity and will gain more momentum.

[ksmihdp]

The ball one will get more velocity while both of them will gain same momentum

[atharvachobe]

QUESTION 1 : Ball 1 will have more velocity because velocity is inversely proportional to mass
QUESTION 2 : Both ball will have same momentum as it is directly proportional to [ MASS and VELOCITY ] ( ball A as mass 1kg but velocity is more as momentum increase and in ball 2 mass is 2kg but velocity decrease but momentum increase because of mass and hence both have same momentum )

[rohinibabu]

Ball 1 will gain more velocity and both balls will have same momentum

[opoku-mensahabdullahrichmo]

can you please do a video on collision and its types? thanks

[ferozkhan-gxnd]

Ball 1 has more velocity because first balls mass is less as compare to second ball if mass decreases velocity increases, , , , ball 2 has more momentum because mass is directly proportional to momentum

[gckorient]

The velocity of the first body will be more bcz equal forces are applied in equal amount of time so the momentum is equal but that does not mean that the two bodies will have the same velocity as momentum only says that its the "motion of a body" and velocity is inversly proportional to mass of the body so obviously the velocity of the first body will be trying to clear my confusion with so much of typing 😅 let me know if im wrong pls !