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A particle of mass m, attached to the en...

A particle of mass m, attached to the end of string of length l is released from the initial position A as shown in the figures. The particle moves in a vertical circular path about O. When it is vetically below O, the string makes contact with nail N placed directly below O at distance h and rotat es around it. If the particle just complete the vertical circle about N,then

A

`h=(3l)/(5)`

B

`h=(2l)/(5)`

C

`h=(l)/(5)`

D

`h=(4l)/(5)`

Text Solution

Verified by Experts

The correct Answer is:
D
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