Question

a train 270 metre long in running at a speed of of 81 kilometre per hour how much time will it take to cross a tree.
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Answer 1

Answer:

12 seconds

Step-by-step explanation:

I hope it will help you

Answer 2

Answer:

Step-by-step explanation:

As width of tree is not given we will take it as 0

then

train has to cross its whole length across the tree

so

distance required to travel by train is only its length across a tree of nil width

=270m

speed of train =81km/h

on converting to m/s

speed =22.5m/s

so time taken =distance/speed

=270/22.5=12

answer is 12 sec