Tag
Rotational Inertia
Entries tagged rotational inertia.
2 entries
Concept
Angular momentum
Angular momentum is rotational inertia times angular velocity, and it stays constant whenever no outside torque acts, which is why spin speeds up as mass pulls inward.
7 min
ConceptRotational inertia
Rotational inertia measures how hard it is to change a body's spin, and it depends not just on how much mass there is, but on how far that mass sits from the axis of rotation.
7 min