Question

a train running at a speed of 45 km per hour crosses a tree in 12 seconds what is the length of the train

Answer 1

Speed=45km/hour
In m/sec =45×5/18=2.5×5=12.5m/sec
Time=12sec
Distance=speed×time
=12.5×12=150m
Length of train is 150m.

I hope it helps you.

Answer 2

Answer:

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