A metre stick is easy to twirl about its own length but hard to swing about an axis through its middle at right angles. Judge the Assertion (A) and Reason (R) about the moment of inertia behind this.

• Assertion (A): The moment of inertia of a rigid body is not a fixed quantity; it depends on the axis of rotation.
• Reason (R): The moment of inertia depends on how the body's mass is distributed about the axis of rotation.