A train is moving 50km/h east. A person is walking 5 km/h west on the train. How fast is the person on the train going relative to an observer on the earth?
2 answers
45 km/h east
Because
person's velocity with respect top land =
Person's velocity with respect to train + train's velocity with rsepect to land.
= -5 + 50
The minus sign of the first term is there because the person is walking opposite to the train's direction.
person's velocity with respect top land =
Person's velocity with respect to train + train's velocity with rsepect to land.
= -5 + 50
The minus sign of the first term is there because the person is walking opposite to the train's direction.
2 answers