Solution of task 11.2.17 from the collection of Kepe OE

Solution of task 11.2.17 from the collection of Kepe OE

11.2.17
Does the cone rotate about the Oz axis at an angular velocity? = 3 rad / s. But its generator with a constant velocity vr = 4 m / s moves point M in the direction from A to B. Determine the absolute velocity modulus of this point at a position when the distance AM = 2 m, if the angle? = 30 °. (Answer 5)