Blog - The motion of the black car

This photograph was taken when I was waiting for the light. And it is showing the black car, a mercedes I believe, moving at a constant speed at first,  but slow down in order to make a turn.  There for the motion of the car moving at a constant speed will look like this ●  ●  ●  ●  and the motion slowing down like ■     ■     ■    ■   ■  ■ ■■

From,

Claire Tabuteau