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DochEvi [55]
4 years ago
15

Two trains of length 90m and120m​

Physics
1 answer:
Alenkasestr [34]4 years ago
6 0

Answer:Train A is 90 m long and running at 72 km/h.

Train B is 120 m long and running at 36 km/h.

When the trains are running in opposite directions, their relative speed gets added: 72+36 = 108 km/h.

The total length of A and B = 90+120 = 210 m

So the time taken to cross each other = 210 m*60*60/108*1000m

= 7 seconds

Explanation:

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