Consider the above figure, the question is what should be the minimum velocity to be given to the block so that it just reaches the top most point of the loop. And yes friction does exist. Coefficient of friction between the block and the circular loop is $\mu$.

Can this problem be solved? If yes, please let me know.

I came up with this problem while solving a similar problem. I have no idea how to solve, u might

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U can also solve it using only work energy theorem without polar coordinates, Solution.jpg

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its great that we finally got the same answer :)

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Yea :)

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Thx guys.. I initially thought it was impossible to solve... :)

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