The stopping distance of any motorized transport is dependent on various factors. It combines mental processing, physical, and vehicle reaction time. The mental processing time involves the time it takes for a person to know that they must react to something. An example is when an individual sees a car reversing and decides whether to brake. Physical reaction time involves the time it takes to react physically to the present event. The vehicle reaction time is the vehicle's response time to the action applied to it. That is the time it takes for it to stop after the brake is activated.