Question

Under what conditions does a rigid body have angular momentum but not linear momentum?

a) Only when stationary.
b) Only when rotating.
c) Only when translating.
d) Angular and linear momentum are always present together.

Answer 1

A rigid body has angular momentum but not linear momentum only when it is rotating.

Step-by-step explanation:

The correct answer is b) Only when rotating. A rigid body has angular momentum but not linear momentum only when it is rotating. Angular momentum is a vector quantity that depends on the rotation of an object around a fixed axis. It is determined by the moment of inertia (a measure of an object's resistance to rotational motion) and the angular velocity (the rate at which the object rotates).