If two objects with different masses are pushing each other, which exerts the greater force?
1. the object with the smaller mass exerts the greater force on the larger object because it requires more force to make the larger object move.
2. they both exert the same amount of force on each other regardless of their mass, but in opposite directions.
3. it is impossible to tell which object exerts the greater force unless we know which object accelerates.
4. the object with the greater mass exerts the greater force on the smaller object because the larger object has more inertia.