Question

Помогите решить задачу

Answer 1

$y_1-y_0= \frac{V1^2-V_0^2}{2g} \\ y_1-y_0= \frac{V1^2\\ }{2g} \\ V_1= \sqrt{2g(y_1-y_0)} \\ V_1= \sqrt{2*10(10-5)} =10 \frac{m}{c}$