#L" :Angular momentum"# #omega " :Angular velocity"# #I" :moment of inertia of rod"# #"Angular momentum for a rotating object is given by: L="I*omega# #omega =2*pi*f# #I=1/12*m*l^2" (for rod rotating around its center)"# #L=1/12*m*l^2*2*pi*f# #L=1/12*8*4^2*2*pi*9# #L=192*pi#