A train 100m long is moving with a constant velocity of 60kmh.find the time it takes to cross 1 km long bridge
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rajesh205:
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so here,u=60 km /h
a= 0(because it is in constant velocity )
s=length of bridge +length of train
=1km +1m
=1.1km
s=ut +1/2at^2
s=60t+1/2×0×t^2
1.1=60t
t=1.1/ 60
=0.0183h
=0.0183×3600
=65.88s
a= 0(because it is in constant velocity )
s=length of bridge +length of train
=1km +1m
=1.1km
s=ut +1/2at^2
s=60t+1/2×0×t^2
1.1=60t
t=1.1/ 60
=0.0183h
=0.0183×3600
=65.88s
Why 3600?
because every hour has 60 min and every min has 60 second so every hour will have 60×60second
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