12 30 l100 Io Solutionwe need to determine the support react

Solution

we need to determine the support reactions in the given problem:

The support recations canm be determine dby considering equilibrium equations

Let us consider vertical force equilibrium:

Vertical reaction at support A=0

vertical reaction at D=1000*cos30 + 1000=1866.025 lb(vertically upwards)

considering moment equilibrium at support D,we get

1000*cos30*10+1000*20-20R_Ax=0

R_Ax = 1433.01 lb(towards right)

From horizontal force equilibrium of structure,we get

R_DX=1433.01-1000*sin30=933.01 lb(towards left)