Question

Problem 18.31 The linkage consists of two 6-kg rods AB and CD and a 16-kg bar BD. When $\theta = 0^\circ$, rod AB is rotating with an angular velocity $\omega = 2 \text{ rad/s}$. Rod CD is subjected to a couple moment of $M = 30 \text{ N} \cdot \text{m}$. (Figure 1) Part A Determine $\omega_C$, measured counterclockwise, at the instant $\theta = 90^\circ$. Express your answer using three significant figures. Enter positive value if the angular velocity is counterclockwise and negative value if the angular velocity is clockwise.

          Problem 18.31
The linkage consists of two 6-kg rods AB and CD and a 16-kg
bar BD. When $\theta = 0^\circ$, rod AB is rotating with an angular
velocity $\omega = 2 \text{ rad/s}$. Rod CD is subjected to a couple moment
of $M = 30 \text{ N} \cdot \text{m}$. (Figure 1)
Part A
Determine $\omega_C$, measured counterclockwise, at the instant $\theta = 90^\circ$.
Express your answer using three significant figures. Enter positive value if the angular velocity is counterclockwise and negative value if the
angular velocity is clockwise.

Problem 18.31
The linkage consists of two 6-kg rods AB and CD and a 16-kg
bar BD. When θ = 0^∘, rod AB is rotating with an angular
velocity ω = 2 rad/s. Rod CD is subjected to a couple moment
of M = 30 N·m. (Figure 1)
Part A
Determine , measured counterclockwise, at the instant θ = 90^∘.
Express your answer using three significant figures. Enter positive value if the angular velocity is counterclockwise and negative value if the
angular velocity is clockwise.

Added by Larry E.

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