What is the angular momentum of the 12 kg disk if the angula

What is the angular momentum of the 12 kg disk if the angular velocity is 6 rad/s and the radius is 0.5 m? Assume point A is at the edge of the disk.

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Solution

>> As, Angular Momentum, L = m*v*r,

m = Mass = 12 kg

v = Velocity = r*w

r = radius = 0.5 m

w = Angular Velocity = 6 rad/s

>> Putting all,

=> L = m*r²*w = 12*0.5²*6 = 18.0 Kg-m²/s

=> Angular Momentum of Disc, L = 18.0 Kg-m²/s ......ANSWER....OPTION (c).....