What is the angular momentum of a rod with a mass of 6 kg6kg and length of 4 m4m that is spinning around its center at 15 Hz15Hz?

1 Answer
Jan 29, 2017

The angular momentum is =754kgms^(-1)=754kgms1

Explanation:

The angular momentum is L=IomegaL=Iω

where II is the moment of inertia

For a rod, I=(mL^2)/12I=mL212

So, I=6*(4)^2/12=8kgm^2I=6(4)212=8kgm2

omega=15*2pi=30pirads^-1ω=152π=30πrads1

L=8*30pi=754kgms^(-1)L=830π=754kgms1