1 Answer

Jeremyh · Answer 1 · 2021-10-24T11:07:47+0000

Answer:

v = 5 m/s

Step-by-step explanation:

Given that,

The distance covered by a runner, d = 400 m

Time, t = 80 sec

We need to find the runner's average speed. It is equal to total distance covered divided by time taken. It can be given by:

$v=(d)/(t)\\\\v=(400\ m)/(80\ s)\\\\v=5\ m/s$

So, the runner’s average speed is 5 m/s.

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