A particle of mass m attached to the end of string of length

Last updated: 6/3/2023

A particle of mass m attached to the end of string of length is released from the horizontal position The particle rotates in a circle about O as shown When it is vertically below O the string makes contact with a nail N placed directly below O at a distance h and rotates around it For the particle to swing completely around the nail in a circle 3 1 h 5 3 h 1 N h 2 h l 5 2 A h 1