Question

You just competed in a track meet and you run the 1500m race in 403 s. what was your average speed in miles per hour

Answer 1

8.46mph

Step-by-step explanation:

Given parameters:

Distance run = 1500m

Time taken to cover distance = 403s

Unknown:

Average speed in mph = ?

Solution:

The average speed of a travel is the rate of change of the total distance with time.

Speed is a scalar quantity that specifies magnitude of the travel but no direction.

Average speed =
`(Total distance covered )/(Time taken)`

we need to covered distance to miles from m and time in seconds to hours.

1609m = 1 mile

1500m =
`(1500)/(1609)` = 0.93miles

3600s = 1hr

403s =
`(403)/(3600)` = 0.11hr

Average speed =
`(0.93)/(0.11)` = 8.46miles per hour