In the mechanism shown, the block B is constrained to move vertically and is attached to t...

In the mechanism shown, the block B is constrained to move vertically and is attached to the bar BD. The point A on the bar AD is fixed. Express all your answers in the component system shown.

At the instant shown, block B is moving downward at 1.5 m/s and is increasing at 3 m/s2, ϕ = 45°, and θ = 30°. If ℓ = 1.2 m and d = 0.8 m, determine the angular acceleration of bar AD and the acceleration of point C at this instant.

Figure P6.96