Question

A train passes a standing man in 5 second and a platform 200 m long in 10 second .find the length of the train and its speed​

Answer 1

Answer:

Step-by-step explanation:

distance=speed/time

                  =200/15

                 =13.3333

Answer 2

Answer:

L = 200 Meters.

Speed = 200/5 = 40 m/sec.

Step-by-step explanation:

When a train passes a person, it travels its own length.

So this train traveled its own length in 5 seconds.

Let train length = Lmeters.

Speed of train = L/5 m/sec.

When a train passes a platform, it travels platform length and its own.

That means, train traveled L+200 meters in 10 seconds.

Speed of train from above calculation = L+200/10

Since both are equal.

(L / 5)  = (L+200)/10

2L = L + 200

L = 200 Meters.

Speed = 200/5 = 40 m/sec.