Question 218474
How fast is 11 meters per a second in kilometers per hour? 


Step 1.  Speed=distance/time=11 meters/sec


Step 2.  Conversions:  1000 m = 1 km and 1 hour = 60 minutes = 60 minutes * 60 seconds/ minute= 3600 seconds.


Step 3.  Do conversions to get kilometers/hour:  (11 meters/sec)(1 kilometers /1000 meters)(3600 seconds / 1 hour).  Notice the units meters and seconds will cancel to get our desired units of kilometers per hour.  


Step 4.  Then, 11*(1/1000)*(3600)=39.6 kilometers per hour.


Step 5.  ANSWER:  39.6 km/hr.


I hope the above steps were helpful.


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