Consider the shown arrangement where the blocks \( \mathrm{A} \) and \( \mathrm{B} \) connected ...

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Consider the shown arrangement where the blocks
\( \mathrm{A} \) and \( \mathrm{B} \) connected by means of a uniform string
\( \mathrm{P} \) is being moved vertically up by the force F. Each

W. block weighs \( 2 \mathrm{~kg} \) while the mass of string is \( 1000 \mathrm{gm} \). The tension at bottom of the string equals
(1) \( 20 \mathrm{~N} \)
(2) \( 40 \mathrm{~N} \)
(3) \( 60 \mathrm{~N} \)
(4) \( 270 \mathrm{~N} \)
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