The cam OAB rotates with a constant counterclockwise angular velocity $.($Figure $1)$

Determine the velocity of the follower rod $CD$ as a function of $$ when the contact between the cam and follower is along the straight region $AB$ on the face of the cam.

Express your answer in terms of some or all of the variables $r,$ and $.$

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$$

$$

Part B

Determine the acceleration of the follower rod $CD$ as a function of $$ when the contact between the cam and follower is along the straight region $AB$ on the face of the cam.

Express your answer in terms of some or all of the variables $r,$ and $.$

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Figure $1$ of $1$