Somewhat confused about this problem and need some clarification: Problem: A particle of mass 0.01kg rotates with angular speed of 2 rad/s in a circle of radius 0.8m. What is its angular momentum? I think the answer should be: I = 0.01kg X (0.8m^2) = 0.0064 kg/m^2. w = 2 rad/s. Therefore, angular momentum = 0.0064 kg/m^2 X 2 rad/s = 0.128 kg*rad/m^2*s. Am I on the correct path?