Learn How to Solve Basic Statics Problems with Expert Guidance

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To solve basic statics problems, begin by ensuring that the tension forces at a specific point, such as point B, sum vectorially to zero. This means that the total forces in both the x and y directions must equal zero. If you are struggling to find the correct answer, it's crucial to share your attempted solutions for better guidance. Understanding the equilibrium conditions is essential for resolving the problem. Engaging with others who can provide expert advice can help clarify the steps needed to reach the solution.
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Can somebody please walk me through how to solve this? I have tried numerous times but can not seem to find the right answer
 
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You should start as usual: at point B all the tension forces add up vectorially to zero. What does that mean?
 
I know that the summation of forces in the x and y directions need to add up to zero, I have tried so many times I am just simply at a loss at this point
 
Please post what you have tried.
 
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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