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Explanation
“A train 100 meter long is running at the speed of 30 km/h”. In the first step, this speed will be changed to m/sec.
Time = Distance/Speed
With the help of speed distance formula; time can be easily calculated.
To Find
Time = ?
Solution
Given speed = 30 km/h
Speed in m/sec = (30 x 1000)/3600 = 75/9 m/sec
Given Length = 100 meter
Time = (100 x 9)/75
Time = 12 sec answer
Conclusion
A train 100 meter long is running at the speed of 30 km/h. The train will pass a man standing near the railway line in 12 seconds.
