Part A
At a given instant the top end A of the bar has the velocity of VA = 4.0 ft/s and acceleration of aA = 7.4 ft/s2.
Determine the acceleration of the bottom B.
![849_figure.jpg](https://secure.tutorsglobe.com/CMSImages/849_figure.jpg)
Part B
Determine the bar's angular acceleration at this instant.
Express your answer to three significant figures and include the appropriate units.