Question

Assume running consumes 100 calories per mile. If you run 10-minute miles, what is your average power output, in watts, during a 1 hour run?

Answer 1

Average power would be 697 watts

Answer 2

Average Power = 697 watts

Explanation:

Given : 100 Calories used in 1 mile and you run in 10 minute

miles

To find : What is your average power output, in watts, during a 1 hour run

Solution : In 10 minutes 100 calories consumes per mile

So, In 1 min =
`(100)/(10)=10` calories consume

Now, in 1 hour = 60 minutes

So, In 60 min =
`{10}*{60}=600` calories consume.

The conversion S.I unit is
`4.18*10^3 J/cal`

Energy 600 cal =
`600 cal*4.18*10^3 J/cal= 2.508* 10^6J`

Time taken 1 hour = 3600 seconds

Average power =
`\frac{\text{Energy}}{\text{Time taken}}`

Average Power =
`((2.508* 10^6 J))/(3600 s)`

Average Power = 697 watts