Find the speed (in km /h ) of a 250 m long train if it crosses a 200 m long bridge in 20 seconds
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Distance=250+200=450m=0.45m
Time=20 seconds=1/180 hour
Speed= Distance ÷Time
=0.45÷1/180=81km/h
Time=20 seconds=1/180 hour
Speed= Distance ÷Time
=0.45÷1/180=81km/h
ROSE8638:
No ans is 81km/h
ya I know
Ok thanks
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