The formula for determining angular momentum is expressed as
L = Iw
where
L = angular momentum
I = moment of inertia
w = angular speed
Also, the formula for finding moment of inertia is expressed as
I = 1/2MR^2
where
M = mass of body
R = radius of body
From the information given,
M = 12
R = 0.75
Thus,
I = 1/2 x 12 x 0.75^2 = 3.375
L = 0.85
From the first equation,
w = L/l
w = 0.85/3.375
w = 0.2519 rad/s
