The pedestrian walked for 2 hours at a speed of 7 km / h and 3 hours at a speed of 5 km / h.
| August 17, 2021 | education
The pedestrian walked for 2 hours at a speed of 7 km / h and 3 hours at a speed of 5 km / h. Find the average speed of a pedestrian along the entire path.
To find the average speed of a pedestrian along the entire path, you need to find the total time spent on overcoming the path and the total length of the path. We have: total length L = 2 * 7 + 3 * 5 = 14 + 15 = 29 km / h, total time t = 2 + 3 = 5 hours. To find the average speed, use the formula: V = L / t, V = 29/5 = 5.8 km / h.
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