Angular Velocity and Acceleration

AI Thread Summary
The discussion focuses on determining the velocity and acceleration of point C and the angular acceleration of link BC, given the angular velocity and acceleration of link AB. The known values include the angular velocity w as -2k and angular acceleration α as 2k, with point A having zero velocity and acceleration. The user has calculated point B's velocity as -j but struggles to relate this to link BC's angular parameters. Attempts to apply the equation for acceleration have not yielded a valid solution. The conversation highlights the complexities of linking angular motion to Cartesian vectors in this context.
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Homework Statement


Link AB has angular velocity and angular acceleration as shown. Determine the velocity and
acceleration of point C and the angular acceleration of link BC at this instant. Express them as
Cartesian vectors. https://www.physicsforums.com/attachments/41853

Homework Equations



vA = 0
aA = 0
w= -2k
(alpha) =2k

The Attempt at a Solution


I have found that the point b has a velocity of -j

Im not sure how to equate this to the angular velocity of BC or the angular acceleration of BC.

I have used tried applying the ac = (alpha) x rc/b - w2rc/b

but this isn't producing any solution
 
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