A bullet is fired from a gun at the speed of 280 m s^-1 in the direction 30^° above the horizontal. The maximum height attained by the bullet is ( g…

A bullet is fired from a gun at the speed of $\displaystyle 280 \mathrm{~m} \mathrm{~s}^{-1}$ in the direction $\displaystyle 30^{\circ}$ above the horizontal. The maximum height attained by the bullet is $\displaystyle \left(\mathrm{g}=9.8 \mathrm{~m} \mathrm{~s}^{-2}, \sin 30^{\circ}=0.5\right)$ :