Answer to Question #209697 in Physics for Yesh

Question

You might have had the experiment of being at a red light when, out of the corner of your eye, you see the car beside you creep forward. Instinctively you stomp on the brake pedal, thinking that you are rolling backward. What does this say about absolute and relative motion?

Answer 1

Yours reference frame will make you think that the car behind you is at rest (not moving) while the car you are sitting and driving in is going backward. You will instinctively stomp on the brake pedal, in order to stop the car from going backwards. You see your car going backwards only in your reference frame.