(Solved): Figure Q10 shows a quick return mechanism. Crank 2 is rotating at constant angular velocity CW. Find ...

Figure Q10 shows a quick return mechanism. Crank 2 is rotating at constant angular velocity CW. Find (a) Stroke of point \( C \). (b) The value(s) of \( \theta_{2} \) when the rotational speed of link 4 is zero. (c) The average linear speed of point \( C \) to the left while moving between its limit positions. (d) The average linear speed of the point \( C \) to the right while moving between the limit points.