Question

A 50m long train is moving with a speed of 90 km/hr. How much time will it take to cross a platform of 200 m ?​

Answer 1

Answer:

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Explanation:

45kmph=45× 5/18

=12.5m/s

=12.5m/stotal length covered by train=850m+150m=1000m

=12.5m/stotal length covered by train=850m+150m=1000mvelocity= time

Dispacement

t = s/v

t= (12.5m/s)

= (12.5m/s)1000m

= (12.5m/s)1000m

= (12.5m/s)1000m t=80s

t=80stime is taken to cross the bridge is 80 seconds