Answer:
Step-by-step explanation:
The two phrases that describe a situation that will cause a stationary object to start moving are "a net force equal to 0" and "an unbalanced force". Unbalanced forces cause objects to change their state of motion, while a net force equal to 0 indicates the absence of any forces acting on an object. This is in contrast to balanced forces, which do not cause an object to change its motion. Drag force is an example of an unbalanced force, and its magnitude increases as speed increases.