Problem 1b : In the mechanism shown below, link 2 is rotating CW at the rate of 4 rad/s (constant). In the position shown, 0 is 53°. Write the appropriate vector equations, solve them using vector polygons. Find the angular velocity and acceleration of links 3 and 4. [5 Marks] Link lengths: AB = 100 mm, 220 mm BC = 160 mm, CD = 200 mm. m₁ = 40 mm, my = 100 mm/s, mA = 400 mm/s² A 002 2 C 3 B 160 mm D 4 Ꮎ