Center of Mass

Center of Mass and stability demonstrations

It is useful to note that the mass-center is a fixed property for a given rigid body (e.g. with no slosh or articulation), whereas the center-of-gravity may, in addition, depend upon its orientation in a non-uniform gravitational field. In the latter case, the center-of-gravity will always be located somewhat closer to the main attractive body as compared to the mass-center, and thus will change its position in the body of interest as its orientation is changed.

In the study of the dynamics of aircraft, vehicles and vessels, forces and moments need to be resolved relative to the mass center. That is true independent of whether gravity itself is a consideration. Referring to the mass-center as the center-of-gravity is something of a colloquialism, but it is in common usage and when gravity gradient effects are negligible, center-of-gravity and mass-center are the same and are used interchangeably.

[dcpowered]

Excellent explanation with practical approach. The best video on this topic!

[praveenkaintura]

Here in India we like your lectures a lot.great clarity.sir...Love from India

[alicesenthil]

I learnt a lot about centre of mass. I would definitely apply these demonstrations to my students. Thank a lot Sir

[swaggattarius]

After hearing people explain why men cant do the 'chair challenge' but women can, I had to find out the real reason and how to explain the difference.

Thank you so much, my brain feels at peace again. Lol

[MiHaFi]

Really you have done a great job, I am really proud of you, in 2 years I am gonna be physics teacher and I hope to be as good as you and have that same ambition

[jimmybindra]

very nice ...thanks for this ...I went back to this old school logics before I prepare myself to order an outdoor Almirah with wheels underneath. And this video has certainly helped !!

[ConceptualCalculus]

Thank you. I love this. It really gets the concept across. I'm teaching Calculus 3 students how to use multiple integrals to calculate the coordinates of the center of mass of an object. The textbook is full of formulas and details, but I wanted to open with something more conceptual. This is perfect.

[RogelioJaimes-bzrs]

Muy interesante la explicación con cosas sencillas. Muchas gracias. Seguiré viendo sus videos. Saludos desde aqui Lima Perú presente...

[gonzalezgavino]

Que bueno  Sr. David!!
Really good  Mr.David!!
Gracias thanks merci....grazas

[abhisheknkv]

I APPRECIATE YOUR EFFORTS SIR! A PRODUCTIVE 10MINS FOR MY EXAMS, THANKS A LOT!
REMEBERING THIS VIDEO WAS A DECADE BACK, WOAHHH!👌

[ashishnagda]

Thank you a lot. I am in 9th grade and my concept got clear because of you. Thank You.😁😁

[alexpym]

7:12 rockets only use rcs thrusters for docking, for stability they use gimbal in the main engine.

[tasneemqadi]

You're a genius!! Thank you SO much for this!

[lordmcswain]

To account for that, you could put a nail in the "thickness"or z axis side of the block and use a weight on the end of a string to find the line where the center of gravity must lie. Then, if you know the center of mass for the block if it were of uniform thickness (the center of mass for the x and y axis), you find their intersection.

[fulsingh]

You are an amazing teacher, and must be a good human too :)

[naderkhaled]

This is an amazing method of explaining a physics topic !!

[Boatium]

Wow a spectacular explanation. Thank you sir👏🏻

[k.krecords]

Excellent explanation
Your explanation is above of excellent

[TuExklusiv]

Really good video! Learning this stuff now in college!

[Ayzlxn]

This is an amazing video thank you so much!