A skier, descending from a mountain, walks 50 m in 5 s. Descending from the mountain and continuing to move
| April 18, 2021 | education
A skier, descending from a mountain, walks 50 m in 5 s. Descending from the mountain and continuing to move, he goes to a full stop for another 30 m in 15 s. Find the average speed of the skier over the entire travel time.
Based on the knowledge gained earlier, we will write down:
Vav = Svell / tall;
Sweight = 50m + 30m = 80m;
tall = 5s + 15s = 20s;
Vav = 80m / 20 s = 4 m / s
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