How do I find the centre of gravity of this object?

Click For Summary
To find the center of gravity of the object for stability in water, the discussion highlights confusion regarding the correct value, with one participant suggesting it should be 1.5 meters instead of 1. The problem states that the center of gravity is 0.5 meters above the water surface, leading to a total height of 1.5 meters from the bottom of the object. The height of the barges and platform is also crucial for accurate calculations. Clarification on these dimensions is necessary to resolve the discrepancy in the center of gravity assessment.
ipocoyo
Messages
8
Reaction score
0

Homework Statement


Hi everyone, I need help finding the centre of gravity for this object in order to find its stability in water. However, I am having trouble finding out the centre of gravity.

Capture.jpg


Homework Equations



N/A

The Attempt at a Solution


[/B]
The answer says that it is 1, but shouldn't it be 1.5? 3/2 = 1.5
 
Physics news on Phys.org
We need to know the height of the barges and the height of the platform, however the statement says that the center of gravity is 0.5 above the surface of water, that is d+0.5=1.5m from the bottom of the object.
 

Thread 'Magnitude of buoyant force in fluids of different densities'

The book claims the answer is that all the magnitudes are the same because "the gravitational force on the penguin is the same". I'm having trouble understanding this. I thought the buoyant force was equal to the weight of the fluid displaced. Weight depends on mass which depends on density. Therefore, due to the differing densities the buoyant force will be different in each case? Is this incorrect?
View full post »

Similar threads

To find the centre of gravity of a lamina
  • · Replies 2 ·
Replies
2
Views
2K
Difficulty understanding Centre of Gravity
  • · Replies 10 ·
Replies
10
Views
3K
Difference between centre of mass and centre of gravity
  • · Replies 4 ·
Replies
4
Views
2K
Find the center of gravity of a combined cone and cylinder
  • · Replies 7 ·
Replies
7
Views
2K
Centre of gravity of a 3D irregular object
  • · Replies 6 ·
Replies
6
Views
2K
Centre of gravity, centre of buoyancy (image)
  • · Replies 2 ·
Replies
2
Views
2K
Gyroscope Experiment Homework: Find Centre of Gravity & Nutation Effects
  • · Replies 1 ·
Replies
1
Views
2K
Rotation due to center of gravity
  • · Replies 4 ·
Replies
4
Views
2K
Force Between 2 Coaxial Current-Carrying Loops
  • · Replies 4 ·
Replies
4
Views
2K
Effect of Lowered Center of Gravity on Jumping Time
  • · Replies 5 ·
Replies
5
Views
2K