What is the magnitude of the angular momentum of the 3.10kg , 5.60-cm-diameter rotating disk in the fig?

Question

Answer 1

Calculate the angular velocity,

ω=2πn/60=2π*600/60=20π rad/s

Calculate the angular momentum,

L=mr^2/2 ω

  =3.1*(5.6*0.01/2)^2*20π

   =0.0243π  J-s