Question

How much time will a tain of length 171 metres take to cross atunnel of length 229 metres if it is running at a speed of 30kmphr?

Answer 1

the train has to travel 171+229=400mts
velocity=displacement/time
time =displacement/velocity

here velocity=30kmph or 8.33m/s
t=400/8.33= 48 sec.

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