Question

A person walks briskly at 1.90 m/s .how much time will it take them to walk one mile?

Answer 1

As in question, the speed of person is given m/s whereas the distance he needs to cover is given in miles.

Formula to calculate the time,

$Distance = velocity \times time$

To get the correct answer, convert the distance in to miles.

$1 mile = (1\times1.6093)\times1,000=1,609.3$

Therefore,

$1,609.3 meters = 1.90 m/s \times time$

or  

$time = \frac{1,609.3 m}{1.90 m/s}$

$time = 847 s$