A train travelling at 40 km /hr crosses a signal post in 30 sec it passes a platform in 45 sec find the lenght of the platform
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Speed = 40 km /hr = 40×5/18=100/9 m/s
Length of train= speed × time taken to pass signal = 100/9×30=1000/3 meter.
Total distance= 100/9×45=500m
Length of the platform = 500-1000/3=500/3 m
Length of train= speed × time taken to pass signal = 100/9×30=1000/3 meter.
Total distance= 100/9×45=500m
Length of the platform = 500-1000/3=500/3 m
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