Which of the following most accurately represents the law of inertia?
A) A body at rest tends to stay at rest, a body at motion tends to stay in motion with consistent speed and in the same direction unless acted on by an outside force.
B) The velocity of a body is changed only when acted on by an additional force.
C) The driving force of the body is doubled and the rate of acceleration is also doubled.
D) The production of any force will create another force that will be opposite and equal to the first force.
Answer: A