PLEASE HURRY Which statement describes gravity? There is no defined unit of measurement for gravity Gravity is the force that pulls objects toward Earth's center, Objects that have a small mass will have no gravitational pull. Gravitational pull between two objects decreases as the mass of one increases

In a system with only a single force acting upon a body, what is the relationship between the change in kinetic energy and the work done by the force? answers: work is equal to the change in kinetic energy.work depends on the square of the change in potential energy.work is equal to the negative of the change in kinetic energy.work is equal to the square of the change in kinetic energy