Finding the Instantaneous Center of Rotation for Constant Angular Velocity

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The discussion revolves around determining the instantaneous center of rotation for a bar with a constant angular velocity of 25 rad/s. The user has successfully calculated the velocity of point B as 507.5j using the equation Va = Vb + Wba x Ra/b. However, they express uncertainty about finding the instantaneous center of rotation. Other participants clarify that point B moves perpendicular to bar AB, and point D moves perpendicular to DE, providing hints for the user to proceed. The conversation emphasizes the importance of understanding the geometry of motion to solve the problem effectively.
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Homework Statement



At the instant shown, bar AB has a constant angular velocity of 25 rad/s counterclockwise. Dtermine at that instant a) the angular velocity of the rectangular plate FBDH, b) the velocity of point F

Homework Equations



Va = Vb + Wba x Ra/b

The Attempt at a Solution



Found Vb with the above formula which equals to 507.5j. And i think i should use the instantaneous centre of rotation method but i don't know how to find it.
Can anyone help me to solve this problem?
 

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385sk117 said:
Found Vb with the above formula which equals to 507.5j. And i think i should use the instantaneous centre of rotation method but i don't know how to find it.
Can anyone help me to solve this problem?

Hi 385sk117! :smile:

Do you mean you don't know how to find the instantaneous centre of rotation?

You know that B is moving perpendicular to AB, and D is moving perpendicular to DE. :wink:
 

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