Problem 16.41

At the instant θ = 60 ∘ , the slotted guide is moving upward with an acceleration of 4 m/s2 and a velocity of 3 m/s .

Part A

Determine the angular velocity of link AB at this instant. Note: The upward motion of the guide is in the negative y direction.

Express your answer to three significant figures and include the appropriate units.

ω =

11.5 rads

Part B

Determine the angular acceleration of link AB at this instant. Note: The upward motion of the guide is in the negative y direction.

Express your answer to three significant figures and include the appropriate units.

α =	-61.6 rads2