Question

How fast(miles per hours) is 100m in 14 seconds.

Answer 1

25714 miles per hour (approximately)

1) We need to convert some units when tackling this question.

2) We can write out the following using the speed formula:

`\begin{gathered} s=(d)/(t) \\ s=(100)/(14) \end{gathered}`

Note that 1 hour is equal to 3600 seconds. So we can write this for the time:

`s=(100)/((14)/(3600))=100*(3600)/(14)=100*(1800)/(7)=25714.28\text{mph}`

So, 100 miles in 14 seconds is equivalent to approximately 25714 miles per hour