The blocks \( A \) and \( B \) are arranged as shown in the figure. The pulley is frictionless. ....

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The blocks \( A \) and \( B \) are arranged as shown in the figure. The pulley is frictionless. The mass of \( A \) is 10
P
\( \mathrm{kg} \). The coefficient of friction of \( A \) with the horizontal
W
surface is 0.20 . The minimum mass of \( B \) to start the motion will be
(1) \( 2 \mathrm{~kg} \)
(2) \( 0.2 \mathrm{~kg} \)
(3) \( 5 \mathrm{~kg} \)
(4) \( 10 \mathrm{~kg} \)


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