marlieee !
New member
you see a person in a frain, the train is moving in a uniform speed, ther person in the train is A. you see person B standing on a platform, person A and B are infront of eatchother. A is measuring the train, he measures 20m person B measures the train he measures 10m determinate the speed of the train according to person B
thank you so so much xox
thank you so so much xox