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A small body is released from a height H...

A small body is released from a height H of an inclined plane. At the bottom of the plane is a loop of radius R as shown : ignoring friction, the minimum H required for the body to just complete the loop (that is, reach the point O) is

A

2R

B

`(5R)/2`

C

3R

D

`(7R)/2`

Text Solution

Verified by Experts

The correct Answer is:
B
`1/2 m5gR = mgH implies H =5/2R`
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