A uniform bar of length $L = 0.5m$ is suspended at end by an extensible, taught string of length $R = 0.4m$ at end A as shown. If at the instant shown the, the middle of the bar (point G) has velocity components \begin{equation*} \begin{pmatrix} v_{Gx} \\ v_{Gy} \end{pmatrix} = \begin{pmatrix} -1.4 \\ -2.4 \end{pmatrix} m/s. \end{equation*} Calculate the velocity of point A.
Added by John G.
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First, let's consider the motion of point G. We are given that the velocity components of point G are 2 m/s. Since point G is the midpoint of the bar, we can assume that the bar is rotating about point G. Show more…
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