1. Two identical merry -go -rounds are loaded up with equal amounts of mass . On merry -go -round A , the mass is placed in the center , while the mass is placed near the edges of merry -go -round B. The merry - go-rounds are pushed with equal forces , and merry -go-round A ends up moving with a greater angular velocity . Which statement helps explain this difference ?
Merry -go -round A has a greater moment of inertia .
Merry -go -round A has more inertia .
Merry -go - round B has a greater moment of inertia .
Merry -go - round B has more inertia .