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A barbell consists of two small balls, each with mass 400 grams (0.4 kg), at the ends of a very low mass rod of length d = 35 cm (0.35 m). The center of the barbell is mounted on the end of a low mass rigid rod of length b = 0.525 m (see Figure). The apparatus is started in such a way that although the rod rotates clockwise with angular speed 80 rad/s, the barbell maintains its vertical orientation.

calculate Lrot

Lrot= I[tex]\omega[/tex]

I=mr^2

i tried

(.8kg)*.35^2*80rads/s

and

(.8kg)*.525^2*80rads/s

both are wrong can someone help me?

and i also need help finding the the translational angular momentum too

calculate Lrot

Lrot= I[tex]\omega[/tex]

I=mr^2

i tried

(.8kg)*.35^2*80rads/s

and

(.8kg)*.525^2*80rads/s

both are wrong can someone help me?

and i also need help finding the the translational angular momentum too

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