If the force on an object remains constant as the mass increases the acceleration . increases or decreases?

The larger the mass, the more inertia it has and vice versa

If an object has a large mass it increases to object's tendency to resist movement from an outside force, therefore a larger object has more inertia

If an object has a small mass, the mass decreases the object's tendency to resist movement from an outside force, therefore a smaller object has less inertia

larger object=harder to move

smaller object=eaiser to move