question_answer

One end of a straight uniform 1 m long bar is pivoted on horizontal table. It is released from rest when it makes an angle \[30{}^\circ \] from the horizontal (see figure). Its angular speed when it hits the table is given as \[\sqrt{n}\]\[{{s}^{-1}}\], where n is an integer. The value of n is ______                               [JEE MAIN Held on 09-01-2020 Morning]

Answer:

15