387 Text questions Choose 1 answer

Which statement about the stopping distance of a motorcycle is correct?

1. ①Carrying cargo shortens the stopping distance.
2. ②Reaction distance is the distance from when the brakes begin to work until the vehicle stops.
3. ③Stopping distance is the reaction distance plus the braking distance.
4. ④Braking distance is the distance traveled from when the rider applies the brake until the brakes actually begin to work.