ROTATIONAL MOTION

What is the significance of the vector nature of angular momentum?

• It makes it measurable
• It increases its magnitude
• It allows component-wise conservation
• It makes it scalar

How does the conservation law in Eq. (6.29a) relate to symmetry?

• It arises from time translation
• It arises from translational symmetry
• It arises from rotational symmetry of space
• It arises from gauge symmetry

What is the condition for a force to produce no torque about a point?

• The force is zero
• The mass is small
• The force vector is parallel to the position vector
• The velocity is constant

What is the role of Newton’s third law in angular momentum conservation?

• It causes rotation
• It increases momentum
• It ensures internal forces cancel in pairs
• It defines mass

How does the total torque relate to individual particle torques?

• It is the average of individual torques
• It is the product of torques
• It is the vector sum of all individual torques
• It is always zero