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varun.tinkle (1370)

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Olaaa!! Perrrfect answer. 236  [331 rates]

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total posts: 1353    
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just verify my working
in 1st case the speed is 2 much so friction comes into play
then
Nsin@+un=mv2/r
Ncos@=mg
in second case friction is helping centrepital force
Nsin@=mv2/r+un
ncos@=mg
just verify wether in both cases ncos@=mg

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