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

Answer:

8.46mph

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 = $\frac{Total distance covered }{Time taken}$

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

       1609m = 1 mile

       1500m = $\frac{1500}{1609}$ =  0.93miles

                       3600s = 1hr

                        403s  = $\frac{403}{3600}$  = 0.11hr

Average speed = $\frac{0.93}{0.11}$   = 8.46miles per hour