A rod of length 50 cm is pivoted at one end. It is raised such that if makes an angle of 30° from the horizontal as shown and released from rest. Its angular speed when it passes through the horizontal (in rad s-1) will be (g = 10 ms-2)

A rod of length 50 cm is pivoted at one end. It is raised such that if

1.	A rod of length 50 cm is pivoted at one end. It is raised such that if makes an angle of 30° from the horizontal as shown and released from rest. Its angular speed when it passes through the horizontal (in rad s-1) will be (g = 10 ms-2)
A.	\(\sqrt {\frac{{30}}{2}} \)
B.	\(\sqrt {30} \)
C.	\(\frac{{\sqrt {20} }}{3}\)
D.	\(\frac{{\sqrt {30} }}{2}\)
Answer» C. \(\frac{{\sqrt {20} }}{3}\)

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A rod of length 50 cm is pivoted at one end. It is raised such that if makes an angle of 30° from the horizontal as shown and released from rest. Its angular speed when it passes through the horizontal (in rad s-1) will be (g = 10 ms-2)

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