Question

помогите плиииз срочно​

Answer 1

Ответ:

1. $v_{I} = \frac{100m}{5s} = 20 m/s, v_{II} = \frac{100m}{20s} = 5 m/s$
2. $s_{I} = 20 * t, s_{II} = 100 - 5 * t, s_{I} = s_{II} = > 20 * t = 100 - 5 * t = > t = 4c$
3. $s_{mI} = 20 * 4 = 80m, s_{mII} = 5 * 4 = 20m$