VonMiller157 VonMiller157

11-03-2024
Physics

contestada

A man walks on a straight road from his home to a market 2.5 km away with a speed of 5 km h⁻¹. Finding the market closed, he instantly turns and walks back home with a speed of 7.5 km h⁻¹. What is the average speed of the man over the interval of time 0 to 30 min?

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