You just competed in a track meet and you ran the 1500 m race in 457 s. What was your average speed in miles per hour?

Respuesta :

Taking into account the definition of speed, your average speed is 7.3423 miles per hour.

Definition of speed

Speed ​​is a physical quantity that expresses the relationship between the space traveled by an object and the time used for it.

This is, speed can be defined as the amount of space traveled per unit of time with which a body moves and can be calculated using the expression:

speed= distance÷ time

Average speed in this case

In this case:

  • distance= 1500 meters= 0.9320568 miles (being 1 m= 0.000621371 miles)
  • time= 457 seconds= 0.126944 h (being 3600 s= 1 h)

Replacing these values ​​in the speed definition:

speed= 0.9320568 miles÷ 0.126944 h

Solving:

Speed= 7.3423 miles per hour

In summary, your average speed is 7.3423 miles per hour.

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