A 100 m long train crosses a 400m bridge with a velocity of 72km/h. calculate the time taken to cross the bridge.

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Solution

Step 1:Given data:
Total Distance = $(100 + 400) m$ $= 500 m$
Speed = 72 km/h = 20 m/s
Step 2:Finding the time:
Using the formula of time,
$T i m e = \frac{D i s \tan c e}{S p e e d}$
$= \frac{500}{20} = 25 s e c .$
Therefore, The time taken to cross the bridge is 25 seconds.

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