Failed my Physics Test Need help on a question?

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The discussion revolves around a student seeking help with a physics problem related to forces and acceleration. Key equations mentioned include the sum of forces equating to mass times acceleration, the frictional force being the product of the friction coefficient and the normal force, and the normal force being equal to mass times gravity. The student requests a step-by-step solution to a problem involving acceleration without using time. However, other participants emphasize the importance of providing their own solutions for feedback rather than receiving direct answers. The conversation highlights a common educational approach that encourages problem-solving skills.
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nevermind thanks
 
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im a student as well but i think i may be able to help,

sum of forces = ma
frictional force = (mu)normal force
and the normal force = mg

mu = friction coefficient

find acceleration via the constant acceleration formulas without time
 
i still don't understand. can anyone do the problem step by step with the answer?
 
No! Provide your solution and we will tell you if it is correct or not.
 
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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