An express train 450m long crosses a tree in 22 1/5 sec . Find the speed in km/hr.
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s=d/t
s=450/111/5
s=20.27 m/s
Conversion into km/hr
20.27/1000/3600 =5.630km/hr.
s=450/111/5
s=20.27 m/s
Conversion into km/hr
20.27/1000/3600 =5.630km/hr.
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