Question

Please help !!!! Joe runs 8.25 times around a track in 1,119.803 seconds. If one lap around the track is 402.3 meters, which is the best estimate of the runner’s average speed in meters per second (m/s)?

Answer 1

Answer: The answer is 3m/s

Explanation:

Answer 2

Answer: The runner’s average speed is 3 m/s.

Explanation:

Hi, to solve this problem we have to multiply the length of the track (402.2 meters) by the times that joe ran around it (8.25 times).

So, mathematically speaking:

• 402.3m x 8.25 = 3,318.975 meters

Now that we have this result, we have to divide it by the time ( 1,119.803 sec), to obtain the speed rate.

• 3,318.975 m/ 1,119.803 sec = 2.97m/sec= 3 m/s

In conclusion, the runner’s average speed is 3 m/s.

Feel free to ask for more if it´s necessary or if you did not understand something.