11.3.2
The plate is driven by two cranks AO2 = BO3 = 1 m, rotating with a constant angular velocity ω = 27 ?. The point M moves along the plate according to the equations x1 = 0.2t3 and y1 = 0.3t2. Determine the absolute acceleration of point M at time t = 1 s, if angle φ = 30 °. (Answer 38.3)