Newton's first law of motion is the law of inertia. What does it state?
a
That the acceleration of an object depends on its mass and the amount of force applied to it.
b
That the motion of an object depends on the amount of gravity applied to it.
c
That an object will only accelerate (change motion) if an unbalanced force acts on it.
d
That for every action there is an equal but opposite reaction.