How much time would it take a student to run 10 km if the student runs the first 5 km at a speed of 10 km/h and the second 5 km at a speed of 8 km/h?

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asked Dec 14, 2023 42.4k views

5 votes

How much time would it take a student to

run 10 km if the student runs the first 5
km at a speed of 10 km/h and the second
5 km at a speed of 8 km/h?

Physics
college

Steven DeWitt asked

by Steven DeWitt

4.2k points

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1 Answer

5 votes

1.125 hours.

Speed = Distance/Time

Time = Distance/Speed

5/10=0.5

5/8=0.625

0.5+0.625=1.125 hours

Sunghyun Cho answered Dec 19, 2023

by Sunghyun Cho

3.9k points

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