The mechanism shown is one of two identical mechanisms attached to the two sides of a 90-kg uniform rectangular door. Edge ABC of the door is guided by wheels of negligible mass that roll in horizontal and vertical tracks. A spring of constant k = 600 N/m is attached to wheel B. Knowing that the door is released from rest in the position θ = 30? with the spring un-stretched, determine the velocity of wheel A just as the door reaches the vertical position.

Transcribed Image Text:

le 1.5m