Question

Why can we say that the ratio of net force to mass is constant forany dropped object on Earth?

Answer 1

All objects free fall at the same rate regardless of their mass. Because the 9.8 N/kg gravitational field at Earth's surface causes a 9.8 m/s/s acceleration of any object placed there, we often call this ratio the acceleration of gravity.

Step-by-step explanation:

Newton's Second Law, if I remember right.