Find the Gravity Center of an Egg: Boaz's Assignment

In summary: It's not the center of mass that determines the position of equilibrium, but the center of gravity. So the center of gravity is the point around which the mass of an object is always evenly balanced when at rest. So the center of gravity can be found by suspending the object in a horizontal position and then rotating it around a vertical axis. The point at which the object is balanced will be the center of gravity.
  • #1
bobo
2
0
hello,
i have an assinment that requries puting an egg directly on it gravity center.
1. how can i find it`s gravity center?
2. do you think of and way that i could do it (maybe make some kind of pocket, of a machine?)

thanks,

Boaz
 
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  • #2
how about spinning it like a top?

Nautica
 
  • #3
How about just letting it sit on the counter? The center of gravity is inside the egg, so, it is always "on its gravity center."
 
  • #4
good ideads but...

the real problem that i need to take the egg that hangs in the air (connected to a sting) and put it directly on a small call that the center gravity will be in the middle (without human intervntion).
 
  • #5
center of gravity of an egg

nautica suggests spinning the egg... but that wouldn't give you anything wud it? besides spinning's got more to do with center of mass (rotational motion). A way to find center of gravity is to suspend it by a thread (like someone mentioned) tied around the egg so that the egg hangs symmetrically about the circle formed by the thread around it. You do this 2 ways... first when the egg is hanging straight (the way they are kept in the box. Second way would be to hang it perpendicular to the previous position (the way it stays when you place it on the table). OK>>> that gives another idea... just place the egg on the table and it'll automatically rest on a point just below the center of gravity. Once the egg stops moving (upon placing it on the table), just note the point at which it's touching the table. The center of gravity will be just above that point half way to a diametrically opposite point.
 
  • #6
Right good idea, spinning the egg.

But try this (using a raw egg). Let it first get into equilibrium resting on the table. Then turn it upside down, rotating it 180 degrees around the longitudinal axis (so don't put it neither on it's pointy end nor on its blunt end). Get a marker and put an x on the heavy top part. Now spin it and see what the x is doing. And we observate that contrary to a spinning top, the egg turns itself back, heavy side down, during the spinning.
 

1. What is the purpose of finding the gravity center of an egg?

The purpose of finding the gravity center of an egg is to determine the exact point on the egg where its weight is evenly distributed in all directions. This can help in understanding how the egg will behave when placed on a surface or when subjected to external forces.

2. What tools or equipment are needed to find the gravity center of an egg?

To find the gravity center of an egg, you will need a flat surface, a ruler, a pencil, and a protractor. You may also use a balance scale if you want to measure the weight of the egg at different points.

3. Can I find the gravity center of an egg without cracking it?

Yes, you can find the gravity center of an egg without cracking it. By carefully balancing the egg on a flat surface and using a ruler and protractor, you can determine the point where the egg's weight is evenly distributed.

4. How does finding the gravity center of an egg relate to physics?

Finding the gravity center of an egg is related to the principles of physics, specifically the center of mass and equilibrium. The center of mass is the point where an object's weight is evenly distributed, while equilibrium refers to the state where all forces acting on an object are balanced. By finding the gravity center of an egg, we are able to understand and apply these principles.

5. Are there any real-life applications for finding the gravity center of an egg?

Yes, there are real-life applications for finding the gravity center of an egg. This can be useful in fields such as food packaging, where the center of mass of an egg must be taken into consideration to prevent it from rolling off a surface. It can also be helpful in understanding the behavior of other objects with irregular shapes and uneven weight distributions.

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