The speed of train a from a to B is 60km / h, and that of train B from B to a is 90km / h. given that a and B are 200km apart, how far is the place where the two trains meet from a? equation

The speed of train a from a to B is 60km / h, and that of train B from B to a is 90km / h. given that a and B are 200km apart, how far is the place where the two trains meet from a? equation

Let's meet after X hours. (60 + 90) x = 200 x = 4 / 3 hours away from a: 60 * 4 / 3 = 80km

Why is there a kind of train called maglev

Through the electromagnetic induction, the magnetic poles with the same name are formed on the train and the track, which repel each other and produce buoyancy, so that the friction between the train and the track is reduced to the minimum, so that greater acceleration and speed are generated under the same horsepower, so it is called magnetic levitation