The disk rotates with the angular motion shown. The peg at $B$ is fixed to the disk. Suppose that $=4ra\frac{d}{s},=10ra\frac{d}{s^2},r=0\mathrm{.}6m,$ and $a=1\mathrm{.}35m.($Figure $1)$

Part A

Determine the angular velocity of the slotted link $AC$ at this instant measured counterclockwise.

Express your answer in radians per second to three significant figures. Enter positive value if the angular velocity is counterclockwise and negative value if the angular velocity is clockwise.

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Part B

Determine the angular acceleration of the slotted link $AC$ at this instant measured counterclockwise.

Express your answer in radians per second squared to three significant figures. Enter positive value if the angular acceleration is counterclockwise and negative value if the angular acceleration is clockwise.

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