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An inclined track ends in a circular loo...

An inclined track ends in a circular loop of radius r. From what height on the track a particle should be released so that it completes the loop, assuming there is no friction ?

A

`r/2`

B

`(3r)/2`

C

`2r`

D

`(5r)/2`

Text Solution

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The correct Answer is:
D
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