Решение. 1. m*g*sin(b)-k*m*g*cos(b)=m*a; a=g*(sin(b)-k*cos(b)); L=h/(sin(b)); v=(2*L*a)^0,5; t=L/a; h=10; b=30; g=10; k=0,1.
2.Fc/(m*g)=tg(a); Fc-(m*v^2)/R; tg(a)=(v^2)/(R*g); v=(R*g*tg(a))^0,5; v=(50*10*0,577)^0,5=..
3. m*g*sin(b)-k*m*g*cos(b)=m*a; a=g*(sin(b)-k*cos(b)); b=30; k=0,2