Moment of inertia is biggest for: compact objects objects that are spread out neither; doesn’t depend on shape
Angular acceleration will definitely increase if: torque is decreased and momentum of inertia is decreased torque is decreased and momentum of inertia is increased torque is increased and momentum of inertia is decreased torque is increased and momentum of inertia is increased
Compare a ball rolling down a ramp (with no slipping) with a block sliding down another ramp at the same angle (with no friction). Which one will reach the bottom first? the ball the block same time
Ralph heard his instructor say "Moment of inertia plays the same role in rotational motion that mass does in linear motion." This confuses him. In your own words, explain to Ralph what that means. (I don't want equations. I just want a short conceptual explanation.) Mass describes how much objects resist acceleration when forces are applied. Moment of inertia describes how much objects resist *rotational* (or angular) acceleration when torques are applied.