A man walks on a straight road from his home to a market 2.5 km away with a speed of 5 the market closed, he instantly km/h. Finding turns and walks back home with a speed of 7.5 km/h. The average speed of the man interval of time 0 to 40 min. is equal to over the

Principles of Physics: A Calculus-Based Text
5th Edition
ISBN:9781133104261
Author:Raymond A. Serway, John W. Jewett
Publisher:Raymond A. Serway, John W. Jewett
Chapter2: Motion In One Dimension
Section: Chapter Questions
Problem 7CQ
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. A man walks on a straight road from his
home to a market 2.5 km away with a speed of 5
km/h. Finding
the market closed, he instantly
turns and walks back home with a speed of 7.5
km/h. The average speed of the man
interval of time 0 to 40 min. is equal to
over the
Transcribed Image Text:. A man walks on a straight road from his home to a market 2.5 km away with a speed of 5 km/h. Finding the market closed, he instantly turns and walks back home with a speed of 7.5 km/h. The average speed of the man interval of time 0 to 40 min. is equal to over the
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