Help With Friction: Calculating Coefficient of Friction

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To calculate the coefficient of friction in a centripetal force scenario, begin with a free body diagram that includes all forces acting on the car, considering the incline of the curve. The inclined plane represents the road surface, and it's essential to resolve the forces using a suitable coordinate system. Understanding the problem conceptually is crucial, even if specific numerical values are not provided. The process may seem daunting without familiar numbers, but it is manageable with practice. Mastering this approach will enhance problem-solving skills in physics.
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i really need some one to explain to me how to obtain the cofficant of friction in a cerntipidal force question:
ex
a car of some waight is turning at and the radious of the curve is somehitg there is an incline to the cruve wat is the min and max cofficant of firction? how would you do that i am so lost please help
 
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You'll start this one the same way you'd start a problem with more specific information - by doing the free body diagram. Your "inclined plane" will be the surface of the road, inclined at some angle. Put in all of the forces involved, pick a convenient set of coordinate axes, and resolve the forces as necessary. This really isn't any harder than if you were given numbers with which to work - it just looks that way because you're more comfortable with "9.8" than you are with "g". Painful as the process is, it's something you need to get over. Things like this will help.
 
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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 .
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