ROTATIONAL MOTION

Which table in the provided text helps identify cases where L = L_z does not apply?

• Table 6.2
• Table 6.1
• Table 5.1
• Table 7.1

For which types of bodies does L ≠ L_z hold true?

• Spherical bodies
• Bodies not symmetric about the axis of rotation
• Uniform rods
• Circular disks

When is the total angular momentum vector L aligned with the axis of rotation?

• Always
• Only for symmetric bodies about the rotation axis
• Only when angular velocity is high
• Never

What condition must be met for a rigid body to have L_⊥ = 0?

• The body must be spherical
• The body must be symmetric about the axis of rotation
• The mass must be uniformly distributed
• The angular velocity must be constant

How is the moment of inertia I defined for a rigid body rotating about an axis?

• I = Σ m_i r_i
• I = Σ m_i v_i
• I = Σ m_i r_i²
• I = m r