Question

How long will a 250 m long train running at a speed of 80 kmph take to cross a bridge of 450 m?

Answer 1

Answer:

Therefore 150 m / (30 m/s) = 5s is the answer. 75 km/h + 15 km/h - 5 m/s = 90 km/h + 5 m/s = 90 * 5/18 m/s - 5 m/s = 20 m/s

Step-by-step explanation:Therefore 150 m / (30 m/s) = 5s is the answer. 75 km/h + 15 km/h - 5 m/s = 90 km/h + 5 m/s = 90 * 5/18 m/s - 5 m/s = 20 m/s