Find the velocity of the hanging block if

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Find the velocity of the hanging block if the velocities of the free ends of the rope are as indicated in the figure.

A

$\frac{3}{2}\,m / s \uparrow$

B

$\frac{3}{2}\,m / s \downarrow$

C

$\frac{1}{2}\,m / s \uparrow$

D

$\frac{1}{2}\,m / s \downarrow$

Find the velocity of the hanging block if the velocities of the free ends of the rope are as indicated in the figure.

From constrained

$+2-v_B-v_B+1=0$

$v_B=\frac{3}{2}\,m / s \uparrow$