N stop objects like books that placed thus, there will be no change if nothing more is done to it.N car moving with a speed of 40 km/hr will continue to move with the same speed until we Wen yi yopberok or accelerator.
n a stationary object such as a book that again. Nothing would change if nothing is done to it n the car moving at 40 km / h. Will continue moving at the same speed. Until we step on the brake or accelerator pedal.
N stationary object, such as book, placed there, will not change if nothing so much ะทำต่อ it .N car fast moving 40 kilometers / hour. Still moving at fast until we hit the brake or accelerator pedal .