Question

Speed of a train is 45 m/s .What is the speed in km / h?

Answer 1

Explanation:

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Answer 2

Answer:

162km/h

Explanation:

As 1km/h= 5/18m/s

therefore 1m/s=18/5 km/h

Then 45m/s=45×18/5km/h

=162km/h