A train whose length is 150 m, passes a telegraph pole in 10 sec. Find the speed of the train in km/hr.
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Answer:
see, first of all
Speed=Distance/Time
SI unit of speed is Km/Hr
But over here the units are in m/s
So,we to change it into Km/Hr
150m will change into 150/1000Km and 10s into 10/60 hrs
Speed=150/1000km which will wholly be divided by 10/60 hrs
The answer will be 0.9 Km/hr
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