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21-01-2020
Physics

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George walks to a friends house. He walks 750 meters north, then realizes he walked too far. He turns around and walks 250 meters south. The entire walk takes him 13 seconds. What is his speed per second?

Respuesta :

21-01-2020

Answer: 77 m/s in 2 significant figures

Explanation:

Total distance traveled (d) = 750 + 250 = 1000m

Time taken (t) = 13 s

Speed (s) = ?

Now,

s = d/t

s = 1000/13

s = 77 m/s in 2 significant figures

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