A plane is inclined at an angle α=30^° with respect to the horizontal. A particle is projected with a speed u =2 ms^-1, from the base of the plane,…

A plane is inclined at an angle $\displaystyle \alpha=30^{\circ}$ with respect to the horizontal. A particle is projected with a speed $\displaystyle \mathrm{u}=2 \mathrm{~ms}^{-1}$, from the base of the plane, making an angle $\displaystyle \theta=15^{\circ}$ with respect to the plane as shown in the figure. The distance from the base, at which the particle hits the plane is close to : (Take $\displaystyle \mathrm{g}=10 \mathrm{~ms}^{-2}$ )