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Pl explain this??

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N o e i f t h e r o d i s b e n t . N o w, i t i s m a k i n g 60 a n g l e w i t h i t s t w o s i d e s . I t m e a n s t h a t o n e s i d e i s a t a n a n g l e o f 30 d e g r e e w i t h t h e r o t a t i n g a x i s! N o w a r e k n o w i n g t h a t m o m e n t o f i n e r t i a o f t h e r o d a b o u t i t s e n d i s = 1 / 3 M L^{2} S o, b a s i c a l l y n o w t h e r e a r e t w o r o d s w i t h m a s s = M / 2 a n d l e n g t h L / 2 S o n o w t h e a n s w e r w i l l b e t h e r e s u m m i t i o n : = 1 / 3 * (M / 2) * (L / 2)^{2} + 1 / 3 * (M / 2) * (L / 2)^{2} = 2 / 3 * (M / 2) * (L / 2)^{2} = 2 / 3 * 1 / 2 * 1 / 4 * M L^{2} = 1 / 12 M L^{2} i t i s t h e s a m e i f i t i s b e n t i n t h e p e r p e n d i c u l a r p l a n e t o t h a t o f a x i s!

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