What is the angular momentum of a rod with a mass of #15 kg# and length of #7 m# that is spinning around its center at #5 Hz#?

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Answer 1 · 2017-01-05T11:03:08

The angular momentum is #=1924.2kgms^(-1)#

The angular momentum is #L=Iomega#

and #omega# is the angular velocity

For a rod, the moment of inertia is #I=(mL^2)/12#

#m=#mass of the rod

#L=# length of the rod

So, #I=15*(7)^2/12=245/4kgm^2#

#omega=5*2pi=10pi rads^-1#

#L=245/4*10pi=1924.2kgms^(-1)#