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 that loop in the vertical plane?
A
`5r/4`
B
`2r/5`
C
`5r/2`
D
`4r/5`
Text Solution
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The correct Answer is:
A
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An inclined track ends in a circular loop of diameter .D.. From what height on the track a particle should be released so that it completes that loop in the vertical plane ?
