Question

Ajutați-ma!!!E urgent, va rog!!!

Answer 1

$a_x=acos\alpha\\a_y=asin\alpha\\G_t=mgsin\alpha\\G_n=mgcos\alpha\\\vec{G}+\vec{N}=m\vec{a}\\Oy:N-G_n=0\\Ox:G_t=ma_x<=>mgsin\alpha=macos\alpha|:m<=>gsin\alpha=acos\alpha|:cos\alpha<=>gtg\alpha=a|:g=>tg\alpha=\frac{a}{g}=\frac{\sqrt{3}g }{g}=\sqrt{3}=>\alpha=arctg\sqrt{3}=60^o=>\alpha =60^o$