I had never expected that I will find a video that actually would explain what is momentum. It has become more difficult nowadays to find good videos like this, because of marketers like byjus and topper, who are first in line but are never able to explain anything, just business. Thanks a lot and keep doing what you are doing because you are helping a thousand of people like me.👍
@@Sarif_boy_amit_ Inertia is, as far as I'm aware, an object's willingness to change speed. The higher the inertia, the less willing the object will be to change speed. So, for example, a penny has very little inertia at standstill: You could practically blow on it to move it. However, if you have a large boulder, it could be hard to move, even if you pushed full strength on it, which means it has a large amount of inertia. Applying this to the video, the narrator is stating that momentum is "Inertia in motion" or a moving object's willingness to slow down, speed up, or even come to rest. The larger the momentum, the harder it is to change the speed of the object, in similarity with inertia. (I know this comment is 5 months old, but I hope this helped 'v')
@@KeeganPlays Thanks a bunch whoever you are. I agree that my comment is 5months old but still I am in class 9th and it will must help me, and again it will help me in 10th too. Again thanking you from the inner of my heart 🤗🤗🤗🙏🏻🙏🏻🙏🏻🙏🏻
i have a doubt that why momentum is product of mass and velocity i mean i know it is dependent on mass and velocity but why it is equal to their product???
I think that people made all that up, and there is no real thing called momentum. We just wanted one more thing used to describe stuff around us and decided that product would be a good way of calculating this new thing called momentum. You can't really add mass and velocity to get momentum because they have different units. But, because we know that our new thing called momentum increases and decreases with both mass and velocity, they probably decided that it would be best that the momentum would be the product of these two things. This is just my guess, but I don't see other explanation for such elementary formula.
Yes, thank you. I struggled to get an intuitive answer from our physics teacher. Also, it should be mentioned that photons, which have no mass, thus no inertia, still have momentum because the magnetic field in motion exerts a force on atoms.
“The origin of creating momentum lies in the application of energy. Momentum serves as the initial cause of pushing and pulling. For example, when energy is applied, it generates the necessary momentum for pushing and pulling to occur. Without the application of energy, momentum cannot be created, and consequently, force cannot be exerted to push and pull since it lacks a physical existence.” ~Guadalupe Guerra
@@rajeshprasadgupta_smahmeda6806 I think the point is that inertia is about how hard it is to change an object's velocity if it is bigger. So if a big object is already stationary then it will be harder to move. I'm not sure though.
@@rajeshprasadgupta_smahmeda6806 no. Inertia is not the tendency to make any object stay in motion. Inertia is tendency to not change. So even if a body is moving with constant velocity and in straight line it will resist it's change in motion due to inertia.
And that raises the question of where this property comes from. Is it fundamental, or a consequence of something else? Although momentum cab be expressed as a product of mass and velocity, that relationship doesn't tell us which if these properties are in fact the more fundamental. For example, the General Theory of Relativity describes the apparent "force of gravity" as NOT fundamental but a consequence of mass having an effect on the curvature of spacetime. Objects having nonzero momentum or inertia, and therefore travelling in a straight line per Newton's First Law of Motion, will appear to be deflected by a neighboring massive object, as if by a force acting on them, but in fact they continue to travel in a straight line (their motion vector is constant) but the line itself through spacetime has been curved. How mass effects the curvature is not known, but even setting that question aside, we're led to wonder what gives rise to this property of momentum and manages its vector. The Laws of Motion, like all scientific laws, are only descriptive. They don't inform us about how the mechanism works. But that's the really interesting question. It's true that the math is simpler if we take properties like mass, distance, and time to be fundamental. But we can see that they bear a particular relationship to each other in this universe. We can write p=mv and v=d/t but we can equally write m=p/v and d=vt and so on, depending on what were trying to solve. But this doesn't tell us which expression is more fundamental. Mass seems especially strange when considered by itself. The equations of relativity would be much simpler if the universe consisted only of massless particles all moving at the speed of light. That suggests that mass, and particularly mass at rest, is something of a special case. Our conscious existence happens to take place near the extreme of this special case, so we naturally regard it as the ordinary case, but objectively it may not be at all. Well, this isn't my field, but it sure is interesting to ponder.
Thanks for the explanation. I was confused at work when coworkers where giving advice on my project, saying the momentum on some part of the structure was big. Didn't understand why something static was called momentum. It turns out it isn't 😂, since there isn't any velocity.
How? Momentum is the force making an object move faster and faster and inertia is the tendency to make any object stay in rest position then how Momentum is inertia in motion?
Wait a minute, in my textbook there is inertia of motion and momentum explained differently, but you say they are same, Inertia Of Motion : the resistance of a body to change its state of motion Momentum: Defined as the product of mass and velocity ???????????
Why is that not energy? Why should there be a new thing called momentum, when the internal energy of a thing is proportional to it's mass, and the velocity is just adding the kinetic energy part. Or why do we not just use the formula for kinetic energy mv^2/2 to describe how much "ufff" does something make? I think I would understand why do we need it if somebody explained how was it introduce and why? What problem did someone have to be like: yes we need this.
The video is clear and concise but his analogy of the massive tanker and speeding bullet is slightly flawed. Please remember, a large tanker moving at 1 mph would have approximately 1.2 million times the momentum of a bullet moving at 1000 mph. In fact, a bullet at 1000 mph would have the same momentum as a small child running at about 2 mph. I doubt that small child would knock you over.
I see now why Earth's biggest fear is a frickin asteroid upon impact on it's surface -_- just imagine the mass of that thing going really fast due to the high velocity of gravity pulling it down...I would feel very bad for the guy directly taking taking that hit.
@*Daman Braich* It is the impact created when an object bump into another object. It depends on mass and velocity. Example : A bullet. It is small and has lower mass but when the gun is fired, it moves very fastly ( high velocity ) and even passes through our skin. So, this impact in our body due to the mass and velocity of the bullet is called as Momentum. Can you understand, my friend?
if you realized at 1:12, when he is talking about a bullet flying through an apple, its actually a mosquito shown in the video XD, regardless, amazing video
