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Un problemon...Esto es una discusión · 4 respuestas Hola: Tengo aquí un problemon de carácter matemático. Pero mi primer problemon es: No sé cómo decirlo enteramente en español. Así que, voy a hacerlo en Inglés, if I may. Given: Two trains were heading toward each other on a collision course along the same tracks (rieles). One was travelling at a constant speed of 75 mph (miles per hour), the other at 85 mph. At the same time, a fly was travelling continously back and forth between the two on-coming trains, at a constant speed of 80 mph. Then, at the end of two hours, the two trains finally collided head-on, thereby crushing the fly between them. Question: What is the total distance travelled by the fly before it was crushed between the two trains? ojo: Este problemon no es tan dificil como os parezca. Just think it out very carefully. Thanx y saludos. Miembro Pleno858  Hola: I don't think the direction the fly was flying along has much to do here, it was moving at constant speed (80 km/h) during two hours. e = v * t = 80 km/h * 2 h = 160 km   I had to ask you that follow-up question. I was hoping that you would clarify the irrelevance of the direction of flight in a simple, easy to understand manner without using any "arithmetic". [H] So, to put your answer in simple terms: "If one drives his car at the constant speed of 80 mph, at the end of 2 hours he will have covered a total distance of 160 miles. It doesn't matter whether he drives back and forth, zig-zagging or in one straight line. The total distance covered in 2 hours will be the same." Gracias. 'ta luego. | ¿Tiene una pregunta? Hay gente esperando para ofrecerle ayuda. Cosas interesantes |
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