Question

According to Newton’s first law of motion, when will an object at rest begin to move?

when its inertia decreases to zero
when an unbalanced force acts upon it
when the action and reaction forces are equal
when two equal and opposite forces act upon it

Answer 1

B. when an unbalanced force acts upon it.

Step-by-step explanation:

when a force is applied to an object, it will move.

(hope this helps you!)

Answer 2

An object at rest will begin to move when

b. an unbalanced force acts upon it.

It is basically saying when a force is applied to an object, it will move.

Step-by-step explanation:

Hope this helps!