Two masses on each end of a spring lying horizontally

  • Thread starter Thread starter James Ray
  • Start date Start date
  • Tags Tags
    Spring Two masses
James Ray
Messages
13
Reaction score
0

Homework Statement



Screenshot_2016-05-18-19-42-04.png

Homework Equations


T= 2*pi*sqrt(m/k)
U=1/2*k*x^2

The Attempt at a Solution



https://www.physicsforums.com/attachments/100892,

20160518_211700.jpg
[/B]
 

Attachments

  • Screenshot_2016-05-18-19-42-04.png
    Screenshot_2016-05-18-19-42-04.png
    12.7 KB · Views: 421
Last edited:
Physics news on Phys.org
Would you please explain your scribble? please type in your answer and work.
 
James, by how much was the spring extended?
 
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