Relative Sliding in Mechanisms - Example Problem 4.5-1

Consider the mechanism shown. Arm CD is rotating at 4 rad/sec in the counterclockwise direction and block C slides in the slot of bar AB. Determine the angular velocity of bar AB for the instant shown.

Given:

• ω_CD = 4 rad/s CCW
• l_CD = 40 cm

Find: ω_AB

Familiarize yourself with the system. Notice the points of zero or known velocites and the sliding joint. Assign and draw all velocity directions (angular and linear) on the figure in your book. Click on the figure when done.