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A sprinter set a high school record in track and field, running 200.0 m in 21.8 s . what is the average speed of the sprinter in kilometers per hour? express your answer numerically in kilometers per hour.

Respuesta :

meerkat18
The answer is 33.012 km per hour. You will use the formula speed= distance divided by time.
speed= 200m  / 21.8 sec
speed= 9.17 m/sec
in order to convert it by km per hour, you will just need to convert meter to km and seconds to hour by:
9.17 m/sec (1 km/ 1000 meters) (60 seconds/ 1 minute) (60 minutes/ 1 hour) = 33.012 km/hour

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