Question

To overcome an object's inertia, it must be acted upon by __________. A. gravity B. energy C. force D. acceleration

Answer 1

In order to overcome an object’s inertia (resistance to change), it must be acted upon by an unbalanced force, so the answer to the problem is letter C.

Answer 2

According to Newton's first law, the law of inertia, an object's velocity will not change unless it is acted upon by an outside force. This means that objects at rest tend to stay at rest, and objects in motion tend to stay in motion.