Question

ratnagiri express runs at a speed of 120km/h. if it crosses a signal in 15 seconds, find its length?

Answer 1

Answer:

500 m

Step-by-step explanation:

120*(5/18) m/ sec = 100/3 m/ sec

length of train = speed*time

                        = 100/3*15

                        = 500 m

Answer 2

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Here is your answer
Speed = 120 km/hrs
Time = 15 second
= 15/3600 hrs
(As 1 hrs = 60× 60 sec)
Let the length of the train is x km

As we know the formula
Distance = Speed × Time
$= 120 \times \frac{15}{3600} \\ = 0.5$
Therefore Length of the train is 0.5 km
=0.5× 1000
= 500 m


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