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 o from the horizontal (see figure). Its angular speed when it hits the table is given as n   r a d   s - 1 , where n is an integer. The value of n is ____________

Question

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 o from the horizontal (see figure). Its angular speed when it hits the table is given as n &#160; r a d &#160; s - 1 , where n is an integer. The value of n is ____________

Aicharya · Accepted Answer

according to energy conservation m g l 2 sin &#8289; 30 &#176; = 1 2 m l 2 3 &#969; 2 Solving &#969; 2 = 15 &#969; = 15

One end of a straight uniform 1 m long bar is pivoted on horizontal table. It is released from rest when it…

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