The magnitude of its angular momentum about a point where the axis of rotation intersects the center of the baton is 1.92*10^-2 kg*m^2/s and angular momentum of rod 7.68*10^-2 kg*m^2/s.
A)
Moment of inertia of rod = 1/12*m*L^2
= 1/12*0.12*0.8^2 = 0.0064
Angular momentum = I*ω
= 0.0064*3
= 0.0192 = 1.92*10^-2 kg*m^2/s
B)
Moment of inertia of rod = 1/3*m*L^2
= 1/3*0.12*0.8^2 = 0.0256
Angular momentum = 0.0256*3 =
00768 = 7.68*10^-2 kg*m^2/s
Learn more about angular momentum here:
https://brainly.com/question/15104254
#SPJ4