Relationships (Velocity and momentum)

AI Thread Summary
The discussion focuses on analyzing the relationship between velocity and momentum in a collision simulator based on provided data. It highlights that without additional context, one cannot definitively establish a physical relationship from the chart alone. The key observation is that the blue object's velocity decreased by four, while the green object's velocity increased by two. This indicates that the change in the blue object's velocity is -2 times that of the green object's increase. The conversation underscores the importance of context in interpreting data related to motion.
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Homework Statement


the info/problem are in the attached images


Homework Equations





The Attempt at a Solution


i'm not sure what to state.
 

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If all you are given is the data in the chart you post, you cannot say anything about there being a physical relationship. All you can say is that the blue objects velocity decreased by four while the green objects velocity increased by 2. That is, the blue objects velocity increase was -2 times the green objects velocity increase.
 
i forgot to add that this is part of a collision simulator
 
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...

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