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A train 50 metre long passes over a bridge at a speed of 30 km/h. If it takes 36 seconds to cross the bridge , the length of the bridge will be ?



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A train 50 metre long passes over a bridge at a speed of 30 kmh If it takes 36 seconds to cross the bridge the length of the bridge will be Please answer fast class=

Answer :

jagrajgrewal10

Answer:

Step 1: Given

Speed(s) = 30 km/h= 30×

5

18

m/s = 25/3 m/s

Length of train(l)= 50 m

Let the length of bridge be x m

Distance covered by train(d) = (50+x) m

time taken(t) = 36 s

Step 2: Formula used

Distance = Speed × Time

Step 3: Finding the length of the bridge

50+x =

25

3

×36

50+x = 300

x = 300-50=250 m

Hence, the length of the bridge is 250 m.

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