Yerdan gorizontga nisbatan α burchak ostida _0 tezlik bilan otilgan jismning uchish vaqti ifodasini toping.

Yerdan gorizontga nisbatan $\alpha$ burchak ostida $\upsilon_0$ tezlik bilan otilgan jismning uchish vaqti ifodasini toping.

1. A$\frac{2\upsilon_0\sin\alpha}{g}$
2. B$\frac{\upsilon_0\sin\alpha}{g}$
3. C$\frac{\upsilon_0^2\cdot\sin^2\alpha}{g}$
4. D$\frac{\upsilon_0^2\cdot\sin 2\alpha}{g}$