1. The problem statement, all variables and given/known data A sphere with mass 0.4 kg circles around a circular trajectory with ray 2 m and angular speed 12 rad/S. Which is the momentum of the impulse of the sphere? 2. Relevant equations L=Iw=2/5mr^2w w(angular speed) or L=mr^2w 3. The attempt at a solution I think we should use the first formula becuase the I (inercy momentum) of sphere, but in the solution it is used L=mr^2w. Which is correct?