20.6.2
A system of forces acts on the body that is in plane-parallel motion, the main vector of which is R = -6i + 4j and the main moment Mc = 4 N • m. Determine the acceleration y of the point C of the body if its kinetic energy is T = 4x2 + 4y2 + 0 , 5φ. (Answer 0.5)