Newton's first law of motion states that an object at rest will remain at rest or an object in motion will remain in a constant motion, unless acted on by an outside force. Another name for this law is the%0D%0A%0D%0A a%0D%0Alaw of inertia.%0D%0A b%0D%0Alaw of acceleration.%0D%0A c%0D%0Alaw of gravity.%0D%0A d%0D%0Alaw of momentum.