Question

A train 100m long is moving with a constant velocity of 60kmh.find the time it takes to cross 1 km long bridge

Answer 1

hey mate
here's the solution

Answer 2

Here's your answer!!

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It is given that,


Length of the train is 100m

Moving with velocity 60km/h


Now,

Length of bridge is 1km = 1000m


So,

Total distance (length) =1000+100

$= > 1100m$

And speed is 60km/h


To convert it in m/s we will have to multiple it will 5/18


$= > 60 \times \frac{5}{18}$


=> 16.66 m/s ( approximately)


Therefore,

We know that,

$= > time = \frac{distance}{speed}$

$= > time = \frac{1100}{16.66}$

$= > time = 66.02 \: sec \: (approx)$

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Hope it helps you!! :)