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The Grand Prix Formula 1 race this weekend is in Singapore. The race consists of 61 laps
around a 5.067 km long track. At 225 miles per hour, how long will it take to go around
once?

Respuesta :

altavistard
Total distance traveled is 61(5.067 km) = 309.087 km.  Convert 225 mph into km/hour:  

225 mph   (1.6 km)
               [-------------- ] = 360 km/hr
                 1 mile

Now divide 309.087 km by 360 km/hr:

309.087 km
---------------- = 0.86 hour (about 51.5 minutes)
360 km/hr
musiclover10045

225 mph

 1 hr = 3600 sec

1.6 km = 1mile

1 lap = 5.067 km

 multiply all the numbers divided by conversions:

225/1 * 1/3600 * 1.6/1 * 1/5.067 =  0.0197 laps / sec 

 
1 / 0.0197 = 50.67 seconds per lap

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