Question

Consider the linkage system below. At the instance shown, point C moves downward at 1.5 m/s and has a downward acceleration of 4 m/s2. Pay attention to the reference axis shown in the diagram, and be sure to denote the proper vector notation on all answers.

1. Write down the position vector of point B with respect to point A.
2. Write down the position vector of point C with respect to point B.

1.3 Write down the position vector of point C with respect to point A.

1.4. Write down a vector equation relationship between the linear velocity at point C and the linear velocity at point

A. Using this equation, determine ωAB and ωBC , the rotational velocities of the two links. Be sure to properly denote the vector direction of the rotational velocity.

1.5. Write down a vector equation relationship between the linear acceleration at point C and the linear acceleration at point A. Using this equation, determine αAB and αBC , the rotational accelerations of the two links. Be sure to properly denote the vector directions.

Answer 1