Question

An Olympic runner completes the 200-meter sprint in 23 seconds. What is the runner’s average speed? (Round your answer to the nearest tenth of a meter per second. ) 0. 9 m/s 1. 2 m/s 8. 7 m/s 10. 1 m/s.

Answer 1

The average speed of the runner is 8.7m/s.

Therefore, Option C) 8.7m/s is the correct answer.

Given the data in the question;

Distance covered; $d = 200m$

Time taken; $t = 23s$

Average speed; $s = \ ?$

Speed is the rate at which an object covers a certain distance. It is expressed as:

$s = \frac{d}{t}$

Where s is speed, d is distance and t is time taken.

We substitute our given distance into the equation

$s = \frac{200m}{23s} \\\\s = 8.6956m/s\\\\s = 8.7m/s$

The average speed of the runner is 8.7m/s

Therefore, Option C) 8.7m/s is the correct answer.

Learn more: brainly.com/question/21503615