The hedgehog rolled down a 10 m slope at a speed of 20 m / s, then opened up and ran another 30 m in 1 minute.

univerkov | December 12, 2020 | education

The hedgehog rolled down a 10 m slope at a speed of 20 m / s, then opened up and ran another 30 m in 1 minute. What was the average speed of the hedgehog?

Average speed = sum of distances / total elapsed time
Distance = 10 + 30 meters
Time = 10/20 (downhill time) + 60 = 60.5s
Vav = 40 / 60.5 = ~ 0.68 m / s

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