HSC - উচ্চতর গণিত ২য় পত্র→অধ্যায়-০৯ঃ সরলরেখায় বা সমতলে চলমান কণার গতি→All Topics

$\text { A small ball from the cjector device at } \mathrm{O} \text { is cjected in such a way that it passes through the small aperture }$$\text { at } \mathrm{A} \text { and strikes the contact point at } \mathrm{B} \text { as shown in the figure below. The coordinates of } \mathrm{A} \text { and } \mathrm{B} \text { are }(2,2)$$\text { and }(3,1) \text {, respectively. If the player controls the angel } 0 \text { and velocity } v \text {, then the value of } \theta \text { that gives him }$$\text { a success is: }$