Arunner moving through a 1600 m course takes 5 minutes and 25 seconds to go 1230 m. what must his average velocity be for the remainder of the course if his average velocity for the whole race was 3.81 m/s

3.89 m/s

Explanation:

If we want an average velocity for the whole race of 3.81 m/s in a 1600 m course, the course it must be completed in:

.

So, the runner already run for 5 minutes and 25 seconds, this is

.

For finishing the course, the runner has

.

Now, the distance that the runner has to cover in this time its:

Finally, the runner average velocity for the remainder will be:

the correct answer is "inertia"