A mass 35 kg is suspended from a weightless bar AB which

A mass 35 kg is suspended from a weightless bar AB which is supported by a cable CB and a pin at A as shown in figure. The pin reactions at A on the bar AB are

1. R_x = 343.4 N, R_y = 755.4 N
2. R_x = 343.4 N, R_y = 0
3. R_x = 755.4 N, R_y = 343.4 N
4. R_x = 755.4 N, R_y = 0

For block, T₂ = mg = 343.35 N ...(i)

tan θ =	l25	= 27.44°
	275

For bar, ∑M_A = O
T₁ × sin θ × l = T₂ × l

⇒ T₁ =	T₂
	sin θ

∴ T₁ = 829.74 N
∑F_y = O
R_y – T₂ + T₁ sinθ = O
∴ R_y = O
∑F_x = O
R_x – T₁ cosθ = O
R_x = 755.4 N