If acceleration of block B is \( 4 \mathrm{~m} / \mathrm{s}^{2} \) upward \& that of \( C \) is ...

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If acceleration of block B is \( 4 \mathrm{~m} / \mathrm{s}^{2} \) upward \& that of \( C \) is \( 6 \mathrm{~m} / \mathrm{s}^{2} \) downward. Find acceleration
\( \mathrm{P} \) of A:-

W
(1) \( 2 \mathrm{~m} / \mathrm{s}^{2} \) upward
(2) \( 1 \mathrm{~m} / \mathrm{s}^{2} \) upward
(3) \( 1 \mathrm{~m} / \mathrm{s}^{2} \) downward
(4) \( 2 \mathrm{~m} / \mathrm{s}^{2} \) downward
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