Hi, I was wondering if someone could explain things simply to me (sorry, Im a high school science teacher and not really into the high level maths side of things). I would like to ask if the General Theory of Relativity says anything about objects obeying Newtons Laws in non-inertial reference frames. A lot of the sources Ive come across say that it confirms that Newtons Laws are obeyed in ALL reference frames - including non-inertial ones -hence its name "General" theory of relativity. But I dont get how the laws are obeyed in a car accelerating from a traffic light- where objects appear to change their motion without an applied force. Thanks.