Relative acceleration is the acceleration of one object as observed from another reference object that is also moving. The document discusses relative acceleration and provides an example of using a crank and rocker mechanism to determine the instantaneous linear acceleration of points A, B, and C based on the angular velocity and acceleration of crank 2. It outlines the steps to solve for the components of acceleration using a velocity resolution and composition method and constructing an acceleration polygon.

1. Relative Acceleration Lecture Notes

2. Relative Acceleration Relative acceleration is the acceleration of one objects as observed from another reference object, which is also moving.

3. Components of Relative Acceleration

4. Example 1: A crank and rocker mechanism has the dimension as shown in the figure. Crank 2 has an angular velocity of 200 rpm CC and a negative angular acceleration of 280 rad/sec 2 . For the position shown, determine the instantaneous linear acceleration of A, B and C.

5. Solving for the components of the acceleration

6. Velocity by Resolution and Composition Method

7. Steps on determining the acceleration polygon

8. Steps on determining the acceleration polygon

9. Steps on determining the acceleration polygon

10. Acceleration Polygon

11. Reference: Elements of Mechanism by V.L. Doughtie and W.H. James. © 1954 by John and Wiley and Sons, Inc. Page 93 - 96.