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5. George walks to a friend's 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
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5. George walks to a friend's 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?

User Jamie Brunton
by
5.6k points

1 Answer

5 votes

Answer:

77 m/s

Step-by-step explanation:

Speed is distance divided by time. His total distance is 1000 meters. So his speed is:

s = 1000 m / 13 s

s ≈ 76.9 m/s

Rounded to two significant figures, his speed is 77 m/s.

User Dmajkic
by
4.3k points
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