Question

8. How long will a train, 120 m long, take to clear a platform, 130 m long, "fits
speed is 50 km/hr?​

Answer 1

Answer:

Step-by-step explanation:

According to the question, the 120 m long train is covering a railway platform, measuring 130 m.

So, the train has to cover its own distance + Length of the Platform.

Therefore, total distance = 120 + 130

                                         = 250 m

                                         = 250/1000

                                         =  0.25 km.

Speed of the train = 50 km/h.

$Speed = \frac{Distance}{Time} \\\\Time = \frac{Distance }{Speed}$

So, time = 0.25 /50 hours = 1/200 hours.

Now, 1 hour = 3600 seconds.

Therefore, 1/200 hr = 3600/200 = 18 sec.

Thus, the train will take 18 seconds to cross the platform.