Question Number 24912 by tawa tawa last updated on 28/Nov/17
Answered by mrW1 last updated on 29/Nov/17
$$\left({i}\right) \\ $$$${L}=\frac{\mathrm{2}×\mathrm{36}}{\mathrm{180}}×\pi{R}=\frac{\mathrm{2}×\mathrm{36}}{\mathrm{180}}×\frac{\mathrm{22}}{\mathrm{7}}×\mathrm{6400}=\mathrm{8050}\:{km} \\ $$$$\left({ii}\right) \\ $$$${t}=\frac{{L}}{{v}}=\frac{\mathrm{8050}}{\mathrm{800}}=\mathrm{10}\:{h} \\ $$