A piston, connecting rod and crank mechanism is shown in the diagram. The crank rotates at a constant velocity of 300 rad/s. Find the acceleration of the piston and the angular acceleration of the link BC. The diagram is not drawn to scale. Crank AB is rotating in clockwise direction.

A four-bar linkage is shown in the figure (the ground "link" OC is considered the fourth bar). If the angular velocity and angular A four-bar linkage is shown in the figure (the ground "link" OC is considered the fourth bar). If the angular velocity and angular acceleration of drive link OA are 6.1 rad/s and 6.6 ras/s^2 respectively, both counterclockwise, determine the angular accelerations of bars AB and BC for the instant represented. The angular accelerations are positive if counterclockwise, negative if clockwise. The answers are not: aAB= 2.356 and aBC = 11.327 or 390.82 and 465.7

The following figure shows how a mechanical actuator works. Determine the angular acceleration of bars AB and BC.

For the mechanism composed of the discs A and B, and the BCD bar; Find the angular velocity of disk A and the velocity of point D. From the table, use the values ​​in the last row for the velocity of point C and the distances and angle marked in the image. Notes Discs A and B have a non-slip contact. Point C is bolted to the yellow collar and bar B. The movement of the collar is defined by the gray bar, which is fixed. The bolt allows the BDC bar to rotate at that point. The BCD bar is a single rigid body