Question

a 520 long train running at a speed of 64 km per hour crosses a standing good train in 54 second find the length of the goods train​

Answer 1

Answer:

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Answer 2

440 m

Step-by-step explanation:

Given :-

A 520 long train running at a speed of 64 km per hour crosses a standing good train in 54 seconds.

To find :-

Find the length of the goods train ?

Solution :-

Given that

Length of the running train = 520 m

Speed of the train = 64 km

=> 64× 5/18 m/s

=> 32×5/9m/s

=> 160/9 m/s

Let the length of the goods train be L m

Total distance covered by the running train

= Length of the running train + Length of the goods train = (520+L) m

Time taken for crossing standing the goods train = 54 seconds

We know that

Distance = Speed × Time

=> Speed = Distance / Time

=> 160/9 = (520+L) / 54

=> (520+L) / 54 = 160/9

On applying cross multiplication then

=> (520+L)×9 = 160×54

=> 520+L = 160×54/9

=> 520+L = 160× 6

=> 520+L = 960

=> L = 960-520

=> L = 440 m

Therefore, L = 440 m

Answer:-

The length of the standing goods train is 440 m

Used formulae:-

• Distance = Speed × Time

• For converting km/hr into m/s multiplying with 5/18.