Answer: B) 6.0 kg * m^2/s
Explanation: To find the angular momentum of the block, we would have to use the formula for angular momentum, which is L = Iw, where L is the angular momentum, I is the moment of inertia, and w is the angular speed. We would need to find the moment of inertia, which can also be written as mr^2. We already know the mass, radius, and angular speed, so we can plug all these values into L = m * r^2 * w. Don't make the mistake of confusing r for the radius of the circle rather than the distance from the axis of rotation and the object. The r in this case is the distance from the axis of rotation and the block, not the radius of the circle. Simplifying the equation would get you 6.0 kg * m^2 /s. I attached an image for the work. Hope this helped!