You run for 100 seconds at a speed of 5.0 m/s and then you walk for 100 seconds at a speed of 1.0 m/s. What is your average speed?

## What is your average speed?

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# 2 Answers

In the first 100 sec you cover 500 m. In the second 100 sec you cover 100 m.

Therefore, you cover 600 m in 200 sec for an average speed of (600/200) m/s or 3 m/s

Average speed is just the total distance traveled divided by the total time.

You already have the total time. It's 100 + 100 = 200 seconds.

Calculate the two distances, add them together, then divide by 200:

D1 = 100 * 5 = 500 m

D2 = 100 * 1 = 100 m

Total Distance D = 600

Average speed = 600/200 = 3 m/s