What is the angular momentum of a rod with a mass of $4 kg$ and length of $6 m$ that is spinning around its center at $23 Hz$ ?

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Answer 1 · 2017-09-19T14:22:51

The angular momentum is $=1734.2kgm^2s^-1$

The angular momentum is $L=Iomega$

The moment of inertia of a rod, rotating about the center is

$I=1/12*mL^2$

$=1/12*4*6^2= 12 kgm^2$

The angular velocity is

$omega=2pif=23*2pi$

$=(46pi) rads^(-1)$

The angular momentum is

$L=12*46pi=1734.2kgm^2s^-1$

What is the angular momentum of a rod with a mass of 4 kg4 kg and length of 6 m6 m that is spinning around its center at 23 Hz23 Hz?