Ratio of inertial and gravitational mass?

AI Thread Summary
The discussion focuses on the ratio of inertial mass to gravitational mass and how to calculate it. Participants emphasize the importance of understanding the definitions of these terms to solve related problems. One contributor suggests looking up the meanings of the terms for better comprehension. The conversation highlights the necessity of foundational knowledge in physics to tackle such questions. Understanding these concepts is crucial for solving related problems effectively.
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what is the ratio of inertial mass to gravitational mass and how we can calculate it?
 
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Welcome to PF;
How would you go about it?

i.e. do you know what each of the terms means?
 
no, i don't know about these terms. it is a question in my book, and i could not solve it
 
If you do not know what the words mean, then it is not surprising that you could not solve the problem.
Have you tried looking the terms up someplace?
 
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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