Question

a train of 450 long is running at a uniform speed of 45km/h.how long will it take.to cross a platform of length 550m​

Answer 1

Answer:

Step-by-step explanation:

GIVEN:-

A train of 450m long is running at a uniform speed 45km/h

TO FIND :-

Time taken to cross 550m lenght

SOLUTION :-

45kmph = 45 ×  18 5  = 12.5m/s

total length covered by train = 450m + 550m = 1000m

velocity =  Dispacement  / time

​t =  s / v

t =1000 /  (12.5m/s)

​t = 80s

time is taken to cross the bridge is 80 seconds

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Answer 2

Question ⤵

A train of 450 long is running at a uniform speed of 45km/h. how long will it take to cross a platform of length 550m ?

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45kmph = 45 ×  18 / 5  = 12.5m/s

Total length covered by train = 450m + 550m = 1000m

Velocity =  Dispacement  / time

t =  s / v

t = 1000 /  12.5m/s

t = 80s

Time taken to cross the platform is 80sec .

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