3. If blocks A and B of mass 10 kg and 6 kg, respectively, are placed on the inclined plane and released, determine the force developed in the link. The coefficients of kinetic friction between the blocks and the inclined plane are μA = 0.1 and HB = 0.3. Neglect the mass of the link. B 30%

1.1 Two solid cylindrical rods AB and BC are welded together at B and loaded as shown. Knowing that d₁ = 30 mm and d₂ = 50 mm, find the average normal stress at the midsection of (a) rod AB, (b) rod BC. d₂ 125 kN B 60 kN 125 kN 1.2 m 0,9 m

В 1.2 m 750 N D 0.9 m -0.6 m 450 N (a) Determine the internal forces and moments acting on section ABCD. (b) Determine the normal stress at point C. (c) Determine the two edges of the section ABCD through which the neutral axis passes. Explain the reason shortly.

A concentrated load P is supported by two inclined bars as shown.  Bar (1) is made of cold-rolled red brass [E = 16,700 ksi; α = 10.4 × 10−6 /°F] and has a cross-sectional area of 0.205 in.2.  Bar (2) is made of 6061-T6 aluminum [E = 10,000 ksi; α = 13.1 × 10−6 /°F] and has a cross-sectional area of 0.370 in.2.  After load P has been applied and the temperature of the entire assembly has increased by 56°F, the total strain in bar (1) is measured as 1000 με (elongation).  Assume θ = 50° and β = 53°.(a) Determine the stress in bar (1).(b) Determine the force in bar (1).(c) Determine the magnitude of load P.