What is the relationship between thrust and density in a half-submerged object?

  • Thread starter Thread starter nokia8650
  • Start date Start date
AI Thread Summary
The discussion revolves around understanding the relationship between thrust and density for a half-submerged object. Participants emphasize the importance of knowing how much water the object displaces, as this is crucial for calculating buoyancy and thrust. The significance of the object being half submerged is highlighted, indicating that it affects the amount of water displaced and, consequently, the thrust experienced. The conversation encourages sharing initial thoughts or attempts to solve the problem for more effective assistance. Overall, the focus is on grasping the fundamental principles of buoyancy in relation to density and displacement.
nokia8650
Messages
216
Reaction score
0
Last edited by a moderator:
Physics news on Phys.org
Hi nokia8650!

Show us what you've tried, and where you're stuck, and then we'll know how to help. :smile:

(and it would help us if you would type the question, instead of making us look at a picture of the words)
 
Thanks for the reply. I don't really know where to start - Iv never come across a problem like this! Il bear that in mind in future!

Thanks!
 
What is the significance of it being half submerged?

Thanks
 
nokia8650 said:
What is the significance of it being half submerged?

Thanks

It is floating, and the question tells you how much water it is displacing.

And that tells you … ? :smile:
 
Kindly see the attached pdf. My attempt to solve it, is in it. I'm wondering if my solution is right. My idea is this: At any point of time, the ball may be assumed to be at an incline which is at an angle of θ(kindly see both the pics in the pdf file). The value of θ will continuously change and so will the value of friction. I'm not able to figure out, why my solution is wrong, if it is wrong .
TL;DR Summary: I came across this question from a Sri Lankan A-level textbook. Question - An ice cube with a length of 10 cm is immersed in water at 0 °C. An observer observes the ice cube from the water, and it seems to be 7.75 cm long. If the refractive index of water is 4/3, find the height of the ice cube immersed in the water. I could not understand how the apparent height of the ice cube in the water depends on the height of the ice cube immersed in the water. Does anyone have an...
Back
Top