this is so helpful! 🙌 i have a midterm exam in 3 hours. pray for my soul

Shahd, It works exactly the same if you use mass instead of area. mass = density x volume. In this case the mass is proportional to the area (assuming uniform density).

I just want you to know that all of your videos are very very helpful. I am an A+ student, and physics is just over my head for whatever reason - you spell things out perfectly so people can like can understand. I come to your videos before every physics quiz - so thank you!!

@MichelvanBiezen

10 жыл бұрын

Kaitlin, That's great. Thank you for the feedback.

You have helped me through College Physics which is currently online, ALOT. Thank you so much, it always feels like I am a student in your class.

@MichelvanBiezen

2 жыл бұрын

Glad you found our videos and that they were helpful. Welcome to the channel!

you are too good... i get hard thinking about all he free poins im going to collect because of this particular video.

This was such a great explanation!!

god bless. I have a midterm soon and you saved me

it's actually really helpful, I was searching in all videos for this type of exercise because I have an exam tomorrow and you reminded me of the explanation, thank you

@MichelvanBiezen

3 ай бұрын

Glad we could help!

you absolutely rock thank you

Awesome explanation sir 👌👌

My left ear loved this video :)

@MichelvanBiezen

2 жыл бұрын

Yes, our older videos were recorded in mono sound, rather than stereo, before we figured out what we were doing.

@einar5172

2 жыл бұрын

@@MichelvanBiezen Very helpful regardless :)

I loved the explanation. Thank you for making physics enjoyable!

@MichelvanBiezen

2 жыл бұрын

You're very welcome! Glad you enjoyed it! 🙂

@z_gm

Жыл бұрын

@@MichelvanBiezen Please sir, can I find an explanation of the angular momentum l=r×p in your explanation

awsm.....thank u siir

my left ear is satisfied. thanks.

@MichelvanBiezen

3 жыл бұрын

Yes, our older videos were filmed in mono. (Before we knew what we were doing)

This video was super helpful!

@MichelvanBiezen

2 жыл бұрын

Glad it was helpful!

My Mechanics exam is next week, thank you for this video 🙏🏾

@MichelvanBiezen

2 жыл бұрын

Good luck!!

thank you

If we could observe the earth-moon system from millions of miles in the z direction, what would the path look like? Would the earth's path be sinusoidal and yet elliptical? Could we derive an equation to describe it?

@MichelvanBiezen

7 ай бұрын

Yes an equation could be derived to describe its motion.

Very helpful

Sir please explain how area is proportional to mass!! It's a bit confusing

@MichelvanBiezen

3 жыл бұрын

If the density is uniform mass = area x height x density (height and density are constants)

You made my life a bit easy

Great video!

@MichelvanBiezen

Жыл бұрын

Thank you. 🙂

How is the center of mass for part 3, 9 when it’s past the 10m on the number line

@MichelvanBiezen

6 жыл бұрын

The center of mass for the rectangular shape is at the middle of the rectangle (half way between 8 and 10.

Thank you professor 💖💖

@MichelvanBiezen

2 жыл бұрын

You are very welcome

What if you have the density per unit area of each? Or the first one and the two next are combined in one!

@MichelvanBiezen

4 жыл бұрын

For your first question, it doesn't matter, the solution would be the same. For your second question, that wouldn't work because you need simple shapes so that you fan find the center of mass easily for each piece.

@BuildingLogs

4 жыл бұрын

Michel van Biezen I didn’t formulate the question totally right. If you have one shape in a form of a L but placed on the long side. The first part of the shape is 20x30 and have a density pet unit area (5 kg/m^2) and the next part of the shape looks like the last two in yours but yours number two have the same height as the first shape in mine but have a total density per unit area of 7 kg/m^2. Same doing as yours ?

@BuildingLogs

4 жыл бұрын

Michel van Biezen I just realised that the next question is finding the moment of intertia about a point on the shape :)

great explanation! thx a lot sir!!!!

hey , sir if i want to find moment of inertia what centroid to use X or Y, wich one is neutral axis?

@MichelvanBiezen

7 жыл бұрын

You can find lot's of videos on moment of inertia in these playlists: PHYSICS 12 MOMENT OF INERTIA PHYSICS 13 MOMENT OF INERTIA APPLICATIONS PHYSICS 13.1 MOMENT OF INERTIA APPLICATIONS 2 MECHANICAL ENGINEERING 12 MOMENT OF INERTIA / AREA

@civilum1449

7 жыл бұрын

thank you sir

Awesome !!!!

@MichelvanBiezen

8 ай бұрын

Thanks!! Glad you found our videos. 🙂

Why is the sound only on the left side. I checked, it's not my headphones or my hearing.

@MichelvanBiezen

6 жыл бұрын

Our older videos were not filmed in stereo. (We had a lot to learn when we started about making videos).

@alinaddaf5279

5 жыл бұрын

😂😂😂Me too

hey i have a question. you know how you wrote 10x5.5 when finding the center of mass for the x axis, why is that? i mean didnt you already find the area of a1 then how can you take half of a1 for a2? its on 3:24

@MichelvanBiezen

8 жыл бұрын

+Zeba Mahmud The x-coordinate to the center of mass for A2 is 5.5 from the origin. The width of A1 is 3 The width of A2 is 5 3 + (5/2) = 5.5 There are many more examples of this in playlist: MECHANICAL ENGINEERING 4

@zebamahmud3266

8 жыл бұрын

+Michel van Biezen thank you that was really helpful. I didn't know you had to take the measurements from the origin. Thank God I asked. Thanks again :)

Thanks ~from a class 11th student who belongs to INDIA.

@MichelvanBiezen

6 жыл бұрын

Welcome to the channel.

can you do some practice with integrals? for like an object that has no specific shape?

Where can I find videos about the velocity of the center of mass?

@MichelvanBiezen

2 жыл бұрын

Are you referring to the velocity of the center of mass during a collision? The videos start here: Physics 9.6 Coefficient of Restitution (5 of 9) Collision and Center of Mass kzread.info/dash/bejne/omuKpputnti-nJc.html

@user-jy6cx4nv9l

2 жыл бұрын

@@MichelvanBiezen Do you have videos on work done to stop a rolling cylinder on a horizontal surface with a certain velocity?

What if all three combined rectangles are of different material

@MichelvanBiezen

3 жыл бұрын

Then they would have different masses, but you would solve the problem in exactly the same way.

Lets say the odd-shaped object had a thickness in the z direction of say 1 unit. Would all of the center of (A)(x)'s be their areas multiplied by .5?

@MichelvanBiezen

8 жыл бұрын

+Andrew Pope There are many more examples in the mechanical engineering 4 playlist.

@MichelvanBiezen

8 жыл бұрын

+Andrew Pope There are many more examples in the mechanical engineering 4 playlist.

So I have to take the center of mass of the individual objects first?

@MichelvanBiezen

7 жыл бұрын

Yes, but for squares and rectangles, that is easy to do.

very helpful thanks a lot

would it be the same to work out the centre of gravity if it is of uniform thickness?

@williamreith1632

6 жыл бұрын

greg greg o

Why do you take the x displacement half of the original length?

@MichelvanBiezen

7 жыл бұрын

We are not looking for displacement here, instead we are looking for the center of mass by combining the center of mass of each section. The center of mass of an object that has uniform mass distribution would be at the half-way point in each direction.

@MyBilal19971

7 жыл бұрын

Alright.!

Thank you sir this was very helpful.

May you live a long life Full of gladness and health . May all God's blessings descend upon you. May peace be within you. May your heart be strong. May you find what you're seeking wherever you roam.

@MichelvanBiezen

7 жыл бұрын

Thank you.

nice explanation, thanks a lot sir

I love physics!!!

Same question came in jee mains 2020 September so the professors also watch your videos ? 🤩

Thank you very much

Bruh. I just realized you're saying " welcome to ilectureonline " and not "welcome to electroline " ......

@MichelvanBiezen

2 жыл бұрын

You are not the first one to tell us that. 🙂

I love you sir no homo

thank you. nice bow tie.