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Question

Convert a speed of 54 km per hour into meter per second.


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Solution

First convert km/hr to m/sec

kmhr=1000m60×60sec=10003600msec=518msec

From the above conversion, we can say that kmhr=518msec

So to convert km/hr to m/sec we multiply the given number by 518m/secor0.28m/sec

Now,

54km/hr=54×518m/sec=15m/sec

Therefore we can say that 54km/hr is 15m/sec


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