0=F/m-g*(sin(pi/6)+cos(pi/6)*k) a=g*(sin(pi/6)-cos(pi/6)*k) ******** F/(mg)-sin(pi/6)=cos(pi/6)*k a=g*(sin(pi/6)-cos(pi/6)*k) ********* a=g*(sin(pi/6)-(F/(mg)-sin(pi/6))) = g*(2*sin(pi/6)-F/(mg)) = 2g*sin(pi/6)-F/m = 2*10*sin(pi/6)-1500/200 м/с^2= 2,5 м/с^2