Find the velocity of centre of mass of the system shown in the figu...

Find the velocity of centre of mass of the system shown in the figure.
\( \mathrm{P} \)
W
(1) \( \left(\frac{2+2 \sqrt{3}}{3}\right) \hat{\mathrm{i}}-\frac{2}{3} \hat{\mathrm{j}} \)
(2) \( 4 \hat{\mathrm{i}} \)
(3) \( \left(\frac{2-2 \sqrt{3}}{3}\right) \hat{\mathrm{i}}-\frac{2}{3} \mathrm{j} \)
(4) None of these