An acrobat lands at the end A of a board and, at the instant shown, point A has a downward...

An acrobat lands at the end A of a board and, at the instant shown, point A has a downward vertical component of velocity υ0 = 5.5 m/s. Letting θ = 15°, ℓ = 1 m, and d = 2.5 m, determine the vertical component of velocity of point B at this instant if the board is modeled as a rigid body.

Figure P6.25